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Elementary Technical Mathematics

12th Edition
Dale Ewen
Publisher: Cengage Learning
ISBN: 9781337630580
BuyFind

Elementary Technical Mathematics

12th Edition
Dale Ewen
Publisher: Cengage Learning
ISBN: 9781337630580

Solutions

Chapter
Section
Chapter 15.9, Problem 15E
Textbook Problem

1-16. Find the sample standard deviation for each set of measurements in Exercises 1–16 of Exercises 15.8.

The following are the squad sizes of the football teams in a regional area. Make a frequency distribution and use it to find the mean.

108, 115, 97, 68, 72, 63, 19, 24, 202, 38, 43, 52, 83, 74, 39, 40,  51, 22, 37, 43, 48, 19, 23, 56, 72, 63, 23, 31, 43

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Chapter 15 Solutions

Elementary Technical Mathematics
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Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - Find the following information from Illustration...Ch. 15.1 - A survey of 100 families was taken to find the...Ch. 15.1 - Illustration 3 shows the average text scores on...Ch. 15.1 - Illustration 4 gives the number of U.S. workers...Ch. 15.1 - a. Illustration 5 lists the 2015 male life...Ch. 15.1 - The data in Illustration7 shows the median usual...Ch. 15.2 - Find 26% of 360.Ch. 15.2 - Find 52% of 360Ch. 15.2 - Find 15.2% of 360Ch. 15.2 - Find 37.1% of 360Ch. 15.2 - Find 75% of 360Ch. 15.2 - Find 47.7% of 360Ch. 15.2 - Of 744 students, 452 are taking mathematics. What...Ch. 15.2 - Of 2017 students, 189 are taking technical...Ch. 15.2 - Of 5020 cellphones, 208 are found to bed...Ch. 15.2 - Candidate A was one of four candidates in an...Ch. 15.2 - A department spends $16,192 of its $182,100 budget...Ch. 15.2 - In June, the sales of an automobile dealership...Ch. 15.2 - Draw a circle graph for Exercises 1320: United...Ch. 15.2 - United States estimated population by age in 2016:...Ch. 15.2 - The suggested semester credit-hour requirements...Ch. 15.2 - A company interviewed its 473 employees to find...Ch. 15.2 - Total forest by continent in year 2015 in millions...Ch. 15.2 - The highest level of education for persons age 25...Ch. 15.2 - The 2015 United Nations population data of the...Ch. 15.2 - Some 2030 United Nations projected population data...Ch. 15.3 - The data in Illustration 1 are from the records of...Ch. 15.3 - An inspector recorded the number of faulty...Ch. 15.3 - Illustration 3 lists the 6months sales performance...Ch. 15.3 - A technician is often asked to read graphs drawn...Ch. 15.3 - A technician is often asked to read graphs drawn...Ch. 15.3 - A technician is often asked to read graphs drawn...Ch. 15.3 - A technician is often asked to read graphs drawn...Ch. 15.3 - A technician is often asked to read graphs drawn...Ch. 15.3 - A hygrothermograph is used by the weather services...Ch. 15.3 - A hygrothermograph is used by the weather services...Ch. 15.3 - A hygrothermograph is used by the weather services...Ch. 15.3 - A hygrothermograph is used by the weather services...Ch. 15.3 - A hygrothermograph is used by the weather services...Ch. 15.3 - A hygrothermograph is used by the weather services...Ch. 15.3 - According to National Oceanic and Atmospheric...Ch. 15.4 - Use Figure 15.6 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.6 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.6 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.6 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.6 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.7 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.7 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.7 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.7 to find the answers for Exercises...Ch. 15.4 - Use Figure 15.7 to find the answers for Exercises...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - Find the mean measurement for each set of...Ch. 15.5 - The mileage on six vehicles leased for 1 year was...Ch. 15.5 - A trucking company had hauls of 2018 km, 2101 km,...Ch. 15.5 - Over an 8day period of time the high temperature...Ch. 15.5 - A pharmacist weighed ten different capsules of the...Ch. 15.5 - A technician measured the power usage of six...Ch. 15.5 - A trucking company had seven items with the...Ch. 15.5 - According to the U.S. Energy Information...Ch. 15.5 - As trees grow in diameter, the wood produced in...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - 120. Find the median measurement for each set of...Ch. 15.6 - Find the following percentiles for the data listed...Ch. 15.6 - Find the following percentiles for the data listed...Ch. 15.6 - Find the following percentiles for the data listed...Ch. 15.6 - Find the following percentiles for the data listed...Ch. 15.6 - Find the following percentiles for the data listed...Ch. 15.6 - Find the following percentiles for the data listed...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - Find the mode for each set of measurements in...Ch. 15.6 - The cross section of the oak tree mentioned in the...Ch. 15.6 - Total worldwide coal production (in millions of...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 1-20. Find the range for each set measurements in...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.7 - 21-40. Find the sample standard deviation for each...Ch. 15.8 - From the following grouped data, find the mean....Ch. 15.8 - Make a frequency distribution of the following...Ch. 15.8 - A laboratory technician records the life span (in...Ch. 15.8 - The life expectancy of a fluorescent light bulb is...Ch. 15.8 - The shipment times in hours for a load of goods...Ch. 15.8 - The cost of goods stolen from a department store...Ch. 15.8 - The number of passengers and their luggage weight...Ch. 15.8 - The income of the residents in a neighborhood was...Ch. 15.8 - The number of defective parts per shipment has...Ch. 15.8 - The following dollar amounts are traffic fines...Ch. 15.8 - The length of hospital stays for patients at a...Ch. 15.8 - The frequency of repair for the trucks owned by a...Ch. 15.8 - The scores that golfers shot on 18 holes at a...Ch. 15.8 - The corn yield in bushels per acre for a certain...Ch. 15.8 - The following are the squad sizes of the football...Ch. 15.8 - The number of miles traveled by an experimental...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - 1-16. Find the sample standard deviation for each...Ch. 15.9 - Measuring the annual tree rings for the 100 +...Ch. 15.10 - A certain manufacturing process has a target value...Ch. 15.10 - A sporting goods manufacturer makes baseballs. The...Ch. 15.10 - The depth of a silicon wafer is targeted at 1.015...Ch. 15.10 - The illumination of a light bulb is targeted at...Ch. 15.11 - In Exercises 14, draw a histogram for the data...Ch. 15.11 - In Exercises 14, draw a histogram for the data...Ch. 15.11 - In Exercises 14, draw a histogram for the data...Ch. 15.11 - In Exercises 14, draw a histogram for the data...Ch. 15.11 - Use the data displayed in Table 15.1 on page 489...Ch. 15.11 - Use the data displayed in Table 15.1 on page 489...Ch. 15.11 - Precision Manufacturing produces 20,000 machine...Ch. 15.11 - Precision Manufacturing produces 20,000 machine...Ch. 15.11 - In Exercises 912, a. Draw a scattergram for the...Ch. 15.11 - In Exercises 912, a. Draw a scattergram for the...Ch. 15.11 - In Exercises 912, a. Draw a scattergram for the...Ch. 15.11 - In Exercises 912, a. Draw a scattergram for the...Ch. 15.12 - Given a normal distribution with a mean of 85 and...Ch. 15.12 - Given the 20 numbers 32, 34, 35, 41, 42, 43, 44,...Ch. 15.12 - In Exercises 36, use the frequency distribution to...Ch. 15.12 - In Exercises 36, use the frequency distribution to...Ch. 15.12 - In Exercises 36, use the frequency distribution to...Ch. 15.12 - In Exercises 36, use the frequency distribution to...Ch. 15.12 - In Example 2, find the number of blouses to be...Ch. 15.12 - A trouser manufacturer has an order for 80,000...Ch. 15.13 - In Exercises 16, find each sample space. The...Ch. 15.13 - In Exercises 16, find each sample space. The cards...Ch. 15.13 - In Exercises 16, find each sample space. The red...Ch. 15.13 - In Exercises 16, find each sample space. The cards...Ch. 15.13 - In Exercises 16, find each sample space. Marbles...Ch. 15.13 - In Exercises 16, find each sample space. Pieces of...Ch. 15.13 - From the sample space in Exercise 1, what is the...Ch. 15.13 - From the sample space in Exercise 2, what is the...Ch. 15.13 - From the sample space in Exercise 3, what is the...Ch. 15.13 - From the sample space in Exercise 1, what is the...Ch. 15.13 - From the sample space in Exercise 2, what is the...Ch. 15.13 - From the sample space in Exercise 3, what is the...Ch. 15.13 - From the sample space in Exercise 4, what is the...Ch. 15.13 - From the sample space in Exercise 5, what is the...Ch. 15.13 - From the sample space in Exercise 6, what is the...Ch. 15.13 - A bag contains 6 red and 4 white marbles. One...Ch. 15.13 - During a manufacturing process, 52 defective items...Ch. 15.13 - In a classroom, there are 18 female students and 7...Ch. 15.14 - A bag contains 1 red marble, 1 blue marble, 1...Ch. 15.14 - A card is chosen from a deck of 52 cards. It is...Ch. 15.14 - A bag contains 8 green marbles, 3 white marbles,...Ch. 15.14 - A large box of vegetables contains 4 tomatoes, 3...Ch. 15.14 - Six out of ten motorcyclists wear safety helmets...Ch. 15.14 - A card is chosen from a deck of cards and placed...Ch. 15.14 - A coin is tossed, and a die is thrown. What is the...Ch. 15.14 - A card is drawn and replaced four times from a...Ch. 15.14 - A card is drawn and replaced four times from a...Ch. 15.14 - A pair of dice is rolled. What is the probability...Ch. 15.14 - Three dice are rolled. What is the probability of...Ch. 15.14 - A card is chosen from a deck of cards and then...Ch. 15.14 - A spinner has numbers 17 marked equally on the...Ch. 15.14 - A spinner has numbers 17 marked equally on the...Ch. 15.14 - A spinner has numbers 17 marked equally on the...Ch. 15.14 - A card is drawn from a deck of 52 cards and then...Ch. 15 - Find 35% of 360.Ch. 15 - Find 56.1% of 360.Ch. 15 - Draw a circle graph using the following U.S. data....Ch. 15 - Draw a line graph using the data in Exercise 3.Ch. 15 - In Illustration 5 on page 479, what was the...Ch. 15 - For Exercises 68, use the following data. A...Ch. 15 - For Exercises 68, use the following data. A...Ch. 15 - For Exercises 68, use the following data. A...Ch. 15 - Given the frequency distribution in Illustration...Ch. 15 - For Exercises 1012, use the data below. A students...Ch. 15 - For Exercises 1012, use the data below. A students...Ch. 15 - For Exercises 1012, use the data below. A students...Ch. 15 - For Exercises 13 and 14, use the frequency...Ch. 15 - For Exercises 13 and 14, use the frequency...Ch. 15 - A spinner with numbers 15 equally spaced on the...Ch. 15 - A bag contains 4 white marbles, 3 red marbles, 1...Ch. 15 - See Illustration 1. What country has the longest...Ch. 15 - See Illustration 1. What country has a life...Ch. 15 - Find 38% of 360.Ch. 15 - Draw a circle graph using the following data on...Ch. 15 - Draw a line graph using the following decade data...Ch. 15 - Using the data in Exercise 5, find the population...Ch. 15 - See Illustration 2. What is the power output when...Ch. 15 - See Illustration 2. What is the power gain when...Ch. 15 - Draw a histogram using the data in the frequency...Ch. 15 - x is paired with y by the following table. a. Draw...Ch. 15 - What is the sample space of cards lower than 4 in...Ch. 15 - For Exercises 1214, use the data in Illustration...Ch. 15 - For Exercises 1214, use the data in Illustration...Ch. 15 - For Exercises 1214, use the data in Illustration...Ch. 15 - A card is chosen at random from a deck of 52...Ch. 15 - Find the sample standard deviation for each set of...

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