Explain how you can quickly calculate the average of the following list of test scores without adding the numbers: 4. 81 78, 79, 82

Q: Find the percentage of data points that lie between -2.31 and 1.85.

A: Assuming the data follows standard normal distribution with mean 0 and standard Deviation 1Finding…

Q: The firefighters responded to 427 calls in March and 572 calls in April. Which of the following is…

A: Given, The firefighters responded to 427 calls in March and 572 calls in April. To find the best way…

Q: The data shows that the percentage 015

A: Given the data shows that the percentage of female cigarette smokers in a certain country declined…

Q: Make an illustration of how you understand the key concept of sampling. Hint: part of a whole

A: The  sаmрling  frаme  is  the  асtuаl  list  оf  individuаls  thаt  the  sаmрle  will  be  drаwn…

Q: How do I use a ti 84 plus calculator to find population proportion

A: A population proportion is a fraction of the population that has a certain characteristic. Suppose x…

Q: The list shows the number of students registered for different sessions of summer sports camps. 258,…

A: Solution: The objective is to find the range of the given data

Q: The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the…

A: The cumulative frequencies are obtained in the below table:

Q: The boxplot below shows salaries for Actuaries and CPAS. СРА Actuary 70 Salary (thousands of $) 30…

A: Given Information: Boxplot shows salaries for Actuaries and CPAs. Jessica makes the median salary…

Q: Find the change in the average value after removing 99 from the following list of numbers: 45, 60,…

A: Given query is to find the change in average value after removing 99.

Q: What is the average of the following numbers? 2, 5, 8, 1 (A 4.5 3. 5,

A:

Q: What is the average? 3,4,5,8

A: Given observation 3,4,5,8 sum = 3+4+5+8 = 20 Number of observation = 4

Q: The grades on a recent test were 89, 72, 100, 87, 65, 98, 77, and 92.  1. Calculate the median test…

A:

Q: What ACT score is above 99.749% of other ACT scores?

A: Let X be the ACT scores. Assuming that ACT scores are normally distributed with mean μ =20 and…

Q: The mean weight of 32 math students is 42.6 kg. If the students could all stand on the scale…

A: Given that ; The mean weight of 32 math students is 42.6 kg. If the students could all stand on the…

Q: Find the mean Income of the following 10 fa 100, 125, 136, 47, 50, 42, 16, 49, 24, 58

A: Given data, 100,125,136,47,50,42,16,49,24,58 Mean=?

Q: Yesterday Al recorded 5 data values, and the mean of those values was 90. Today he realized the data…

A: Given dataMean of 5 data values = 90Data value 80 was actually 50Mean is given by

Q: Carl earned grades of 62, 78, and 89 on four math tests. What is the mean of his grades?

A: The grades earned by Carl are : 62, 78 and 89 The number of grades, n=3 To evaluate : The mean of…

Q: The boxplot below shows salaries for Actuaries and CPAS. СРА Actuary 30 40 50 60 70 80 90 Salary…

A: From given box-plot The median of CPA is 50 The median of Actuary is 60

Q: Calculate the average job gains using the numbers you obtain, 36,239.

A: The given numbers of jobs are 36 and 239.

Q: Juan scored 10 points higer on his midterm and 47 points higher on his final than he did  on his…

A:

Q: What are the percentages of scores that fall between -1 and 0/0 and 1

A:

Q: The IQ score that separates the bottom 15% from the top 85% is P,5 =. (Round to the nearest…

A:

Q: In 2015, there were 680,000 police officers in the United States with yearly wages totaling $4.08 *…

A: The mean or average amount is computed by dividing the total of the data by the total number of…

Q: What is the frequency of deaths measured from 2000 through 2004

A: We have to find the frequency of death measured from year 2000 to 2004

Q: What is the average of the following numbers? 2, 5, 8, 1 3 4 4.5

A:

Q: Explain the sample mean of the difference scores varies.

A:

Q: Briefly explain how the officer collects the sample based on stratified sampling

A: Stratified sampling is the type of sampling where we divide our population into different strata,…

Q: What is the median? 20 40 70 80 2000

A: From the provided information, The number of observations is 5, that is n = 1 The count of…

Q: A defunct website listed the​ "average" annual income for Florida as​ $35,031. What is the role of…

A: Descriptive Statistics: The assessment, summation, and findings of the research pertaining to…

Q: What percentage of people are men who like movies?

A:

Q: The scores of the top ten finishers in a recent Buick Open are listed below. Find the median score.…

A: We have given that,  The data set are : 65, 66, 67, 66, 67, 70, 67, 70, 71, 68 Then,  We will find…

Q: What is your test-statistic? tTest- O 2.058 O 2.508 O 2.805 2.850

A: Given Information: Porsche Driver: Sample size n1=16 Sample mean x¯1=50 Variance s12=9 Standard…

Q: What is the average? 3 4 5 8   2   4   5   10

A:

Q: . The averages of the Top 10 students in your class are as follows:   88, 89, 90, 91, 91, 92, 93,…

A: The averages of the Top 10 students in your class are as follows:   88, 89, 90, 91, 91, 92, 93, 94,…

Q: What is the average of the following numbers? 2, 5, 8, 1   3   4   4.5   5

A: NOTE: Refresh your page if you can't see any equations. . to find the average of n numbers, find the…

Q: Find the change in the average value after removing 5 from the following list of numbers: 45, 60,…

A: Given: List of numbers:45, 60, 89, 115, 120, 99, 103, 130, 5, 101, 69, 75, 98, 107.

Q: 75 of 500?

A:

Q: Explain the purpose of a measure of variation.

A:

Q: if the 90% Ci for the population mean is ( -2.58, 7.54) what is the sample mean

A:

Q: Use the Direct Comparison Test to evaluate 198

A:

Q: What is the median score achieved by a student who recorded the following scores on 10 math quizzes?…

A: Given score achieved by  the students are  68 , 55 , 70 ,62 ,71, 58, 81 ,82, 63 ,79 Arrange it in…

Q: The mean daily wage for 9 construction workers is ₱400. How much will one additional daily wage of…

A: Given that The mean daily wage for 9 construction workers is ₱400.  We have to find How much will…

Q: What score separates the top 1% of students from the bottom 99% ?

A: Given Information: Mean μ=80 Standard deviation σ=20

Q: What is the average of the following numbers 2, 5, 8,1?

A: Given data set is 2,5,8,1sample size(n)=4

Q: Keith has scored 99, 69, 58, 93, and 75 on his previous five tests. What score does he need on his…

A:

Q: What is the median? 135 90 55

A: Median is calculated as below: Median=size of N+12th item Here, N=3

Q: Explain how you can quickly calculate the mean of the following list of test scores without adding…

A: Given data 83, 79, 81, 76, 81

Q: A business department is trying to determine if their program is competitive. They survey recent…

A: Given information: The MINITAB output results for the one-same t test is given.

Q: Find the percentage of data that lies below -2.40, above 1.73, and between -2.40 and 1.73

A: Given data To Find the percentage of data that lies below -2.40, above 1.73, and between -2.40 and…