12. Foot lengths Here are the foot lengths (in centimeters) for a random sample of seven 14-year- olds from the United Kingdom. Calculate (using the table) and interpret the standard deviation. 25 22 20 25 24 24 28

Q: What's the standard deviation for the sample data set to 2 decimal places {6.65,10.82,15.83,20.76}

A: It is an important part of statistics. It is widely used.

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range,…

A:

Q: 5. Thirty-two percent of adult Internet users have purchased products or services online. For a…

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Q: Calculate the mean and standard deviation from the sample data below. 23-41 1 42-60 5. 61 79 80-98…

A: Given data is: class frequency(f) midpoint(x) 23-41 1 32 42-60 5 51 61-79 7 70 80-98 10…

Q: Find the sample standard deviation. Round to the nearest tenth.   22 29 21 24 27 28 25 36

A: By using the given information, we have Data set = { 22 ,29, 21, 24 ,27, 28 ,25 ,36 } Total number…

Q: What is the average score for those who are confident about voicing their opinions and ideas with…

A:

Q: 3. The length of a iron bar is measured by a number of different observers and the following set of…

A: Arrange the given data in ascending order301,302,302,303,303,304,305,307,309,310,311,312

Q: A data set is formed by recording the sums in 400 rolls of a pair of a dice. A second data set is…

A: Standard deviation:The standard deviation indicates by how much each observation differs from a…

Q: A researcher talks with 20 heroin addicts to find out how many times they have shoplifted in the…

A: Hello there! there are more than three subparts in the question. According to our policies we cannot…

Q: Find the mean and standard deviation of the numbers below.  3 7 5 4 5 6 7 8 6 5

A: First of all, let's arrange the data in a particular order(ascending) for further calculation. i.e…

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: Given: Mean = 20 Standard deviation = 5

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range,…

A: From given data, data data-mean (data - mean)2 71 19.4545 378.47757025 28 -23.5455…

Q: The highway mileage (mpg) for a sample of 9 different models of a car company can be found below.…

A: The mid-range is obtained below: The given data set is 36, 26, 20, 24, 49, 23, 29, 47 and 49. From…

Q: 30. The following scores were given by 6judges for a gymnasts performance in vault of an…

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Q: The following data are the GPA’s of 12 students at State University. Determine the mean, median,…

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Q: 5. A statistics professor reported that the mean score in a recent quiz is 72 and the standard…

A: Answer - Given X~ N( μ, σ)                Where μ = 72    and σ = 6                Find the…

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range,…

A: From the provided information, The data values are as follow: 2, 69, 34, 86, 74, 24, 54, 68, 58, 39,…

Q: The number of regular season wins for 10 college football teams in a given season are given below:…

A: x x2 2 4 10 100 15 225 5 25 13 169 10 100 15 225 9 81 7 49 4 16     ∑x=90…

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: From the provided information, Maximum value of data set = 94 Minimum value of data set = 19 The…

Q: Given the sample data below: x  46  37  40  33  42  36  40  47  34  45 What is the standard…

A:

Q: What is the average score for those who say they are an employee who others can depend on with the…

A: Average score: The general formula to obtain the expected value (mean) of a discrete random variable…

Q: Hello! I need help with this particular question on my study guide. There is an attachment below.…

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Q: The number of people standing in the line to vote at the last Presidential Election at 7:00 P.M. was…

A: In statistics, three measures of central tendency are widely used. These three measures are also…

Q: 1.What is the sample standard deviation of this data set? {2,7,9,15,15} GeoGebra Calculator 4.96…

A: 9

Q: What is the standard deviation for the following set of scores: 10, 15, 12, 18, 19, 16, 12? Group of…

A: From the provided information, total observations (n) = 7 For calculating standard deviation first…

Q: A commuter travels many miles to work each morning. She has timed this trip 5 times during the last…

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Q: Calculate the mean, standard deviation, and z score of the following values: 7, 5, 8, 10, 9, 6, 7…

A: Following are the explanation of the question.

Q: What is the standard deviation of the following sample data? 38,27,39,29,41,42

A:

Q: c) What are the mean and standard deviation of the number of incorrect responses? (Give a reason)

A: Given:   Number of questions = 30 X = Number of correct responses Mean of X = 21 Standard deviation…

Q: We are going to calculate the standard deviation for the following set of sample data. 8 15 11 6. 3…

A: Given data, 8,5,11,9,3 standard deviation=?

Q: 5. The NBA commissioner wishes to know how many hours per day NBA players watch TV. He sampled the…

A: Solution-: We find a 90% C.I. for the average  amount of time that NBA players spend watching TV.

Q: find the range and standard deviation, round to two decimals places: The table below gives the…

A:

Q: 1) Here are the weights in pounds of a sample of 10 students in fourth grade class: 61, 64, 66, 74,…

A: A) Mean: Mean(x¯)=Sum of data valuesNumber of data values        =61+64+66+74+77+78+78+83+84+8510…

Q: 7. Take a look at the following data set: 4 6 8 10 12, What is the sample standard deviation?

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Q: 4) Which of these samples would have the smallest standard deviation? a. 101, 92, 84, 131 b. -25,…

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Q: PLEASE SHOW WORKING     Based on the data set below, what is the standard deviation? 28…

A: we hope the last data value is 4 only (not a double digit value?)

Q: An airline charges $25 for the first bag, $35 for the second bag.  54% have no checked luggage 34%…

A: The given information is that an airline charges $25 for the first bag, $35 for the second bag. 54%…

Q: What is the standard deviation of the data set comprising the numbers 3, 7, 4, 7 and 9? 4.8 O 2.45…

A: Given: N=5 The standard deviation is obtained as follows: σ=∑X-X¯2N The mean is obtained using the…

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range,…

A: Given that data  46 59 52 37 78 73 80 35 43 45 81

Q: The following data represents the number of blogs that a sample of students state they follow. 12,…

A: From the provided information, 12, 3, 10, 9, 0, 1, 8, 7, 3, 10, 19 Number of observations (n) = 11

Q: What is the average score for those who work well with others in teams with the standard deviation?

A:

Q: A group of friends get together every Sunday for a little pick-up hockey.  The age of the 20…

A: Solution

Q: 4. The variance of a data set is 3410.56. Find the standard deviation for the data set.

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Q: The tourist bureau of the Caribbean Island survey a sample of 6 United States tourists as they left…

A: The mean number of days spent on the visit can be calculated as:

Q: How many values are within one standard deviation of the mean ? 180,313,255,202,198,109,183,18…

A:

Q: Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the…

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Q: 8he špecializing in caring for elderly patients. On her new doctor's website, it says that the mean…

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Q: How long do people spend travelling to work?the answer may depend on where they live.here are the…

A: The number of observations is 15.

Q: Find the mean, IQR and standard deviation in the set of numbers below

A: Mean refers to the average value of the data set under consideration. It is obtained by the formula…

Q: SE Mean

A: Country- CHINA Sample size (n) =50 Sample mean (x¯) = 22.5  Standard deviation (σ)=9.75