Q3. Find the value of z which make the variance of the set of data following equal to 2.5? 9,8,6, 7,1

Q: b. Suppose that the mean of a set of data is 55.8 and the standard deviation of a set of data is…

A: Given that  Suppose that the mean of a set of data is 55.8 and the standard deviation of a set of…

Q: Find the variance for this data set of salaries 30, 34, 52, 48, 25, 36, 27 Round the…

A: The mean of the sample data can be obtained as:

Q: What is the variance of the small DATA: 7, 13, 5, 9, 16 a. 4.47

A: The data is given as follows 7 13 5 9 16

Q: In a series of 5 observations, the values of mean and variance are 4.4 and 8.24. If three…

A:

Q: The variance of the data :. 6 ,6 ,-6,-6 is equal to

A: Find variance of the data  6 ,6 ,-6,-6

Q: If the variance of the data values in a sample is 324, what is the standard deviation of the data…

A: Given that  Variance=324 Find standard deviation

Q: 3. If the median of the data set x, i ..n? the data set 2x+3. i 1, 1..n, is 10, what is the median…

A:

Q: The following data set represents the ages of all 6 of Nancy's grandchildren. 11, 8, 5, 6, 3, 9 Find…

A: The number of observations, n=6. The mean is calculated below.

Q: If the mean is 22 for the data: 20, 10, 12, 24, 8, y find the median O 58 O 20 O 16 O 12

A: Ans : Option C - 16

Q: One sample with n = 4 scores has a mean of M = 12, and a second sample with n = 6 scores has a mean…

A:

Q: If a sample of 25 students is taken from a population of 179 students, the population variance, o,…

A:

Q: * Find the mean of the difference between the paired data entries in the dependent samples.() Before…

A:

Q: Solve for the range, variance, and standard deviation of this data: 40, 34, 50, 46, 47, 39.

A: Given data set 40,34,50,46,47,39

Q: A researcher has collected the following sample data: 3, 5, 12, 3, 2. The mean of the sample is 5.…

A:

Q: Find the variance of the number of storms in August.

A: X: Number of thunderstorms in August.

Q: If a set of data is normally distributed, what percent of the data falls between a z- score of -090…

A:

Q: What is the center of {0.1, 0.3, 0.02, 0.09, 0.4, 0.05, 0.26}? [ Select ] A. What is the mean of the…

A: Dear student since the policy is to answer first 3 subparts so kindly repost the other.

Q: Calculate the coefficient of variation of a distribution with == 25, *f=21 254 and 2.1= 3804 O…

A:

Q: A scatter plot does not show a relationship between two items. O True O False

A: What is a scatterplot? A scatterplot is a type of data display that showsthe relationship between…

Q: A sample of scores has a mean of ? = 35 and ? = 6. Find the z-scores that correspond to the…

A: We have given that,  Let Y be the random variable from normal distribution with mean (μ) = 35 and…

Q: The coefficient of variation of the data: 2, 2, 2, 2, 2, 2, 2 is 40% 20% 0% O O

A: Solution: x x-ˉx=x-2 (x-ˉx)^2 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 --- ---…

Q: The researcher found that the model’s effect size was very large where r = .957. Furthermore, r2 =…

A: The given information is, The value of correlation coefficient is, r = 0.957 The value of…

Q: Find the mean and variance of Set S (-8, 4, 0, 10, 16, 20)

A:

Q: The following data set represents the ages of all 6 of Nancy's grandchildren. 11,8,5,6,3,9   Find…

A: Given that, 11, 8, 5, 6, 3, 9 N=6

Q: عند إرسال هذا Find the النموذج variance of the data انات التالية * 2,4,5,6.8.17

A: As per our guidelines we are supposed to answer only one question per post so I am solving first…

Q: e) Determine the mean and variance of W = 3X,-2X2+5

A: Given: Consider X1- Customer will spend more than RM50 at counter 1. It follows Binomial…

Q: Find out the variance for the following data. 22, 18, 25, 15, 30 a. 76.2 b. 72.6 c. 27.6 d. 26.7

A:

Q: 1. Find the mean of the data set 18, 36, 24, 36, 30, and 36. a. 26 с. 36 b. 27 d. 30

A: Explanation of the answer is as follows

Q: Which point would most likely be considered an outlier if it was added to the data in the table?…

A: In statistics, an outlier can be defined as a data point that differs significantly from other…

Q: Q4:- if you know that data ( 12, 10,12,10, 10,6) find the :- Mode, median, mean, variance and…

A:

Q: 2. The three data sets have the same mean and range, but is the variation the same? (a) 5, 7,9,11,…

A: Given : (a) 5 7 9 11 13 15 17 (b) 5 6 7 11 15 16 17 (c)  5…

Q: The net weight in pounds of a packaged chemical herbicide is uniform for 49.75 < x < 50.75 pounds.…

A:

Q: If r =.80, then _____ % of the variance in the scores of one variable is associated with the…

A: Correlation: Correlation analysis is used to measure the strength of the association between…

Q: Mean of the data 14, 12, 15, 12, 17 is 14.0 13.5 14.5 O 15.0

A: To find: Mean of the data

Q: Which equation is the best fit for the data in the table? * Y 3 2 12 5 27 8 48 11 O…

A:

Q: Quèstion 4 Find the median for the following data: 23, 27, 29, 31, 35, 37, 40, 42, 44, 47, 51

A:

Q: Q4. Consider the following data (16, 7, 5, 16, 17, 17, 18, 20, 19, 20, 18, 32, 31, 30), how many…

A: Outliers: Any values in the data set below Q1-1.5×IQR and above Q3+1.5×IQR are considered as…

Q: In the previous problem, there was a correlation of .62 between hours spent playing video games and…

A: The percent of the variance in hours spent playing video games is accounted for by hand-eye…

Q: Q2: The number of stories in the 10 tallest buildings for two different cities is listed below.…

A: For determining the more variability in the number of stories between the specified cities, the…

Q: If on an average, 6 ships out of 10 arrive safely, find the Mean and the S.D of the number of ships…

A:

Q: If the mean is 25 for the data: 20, 30, 15, 24, y, 8 find the median

A: Given that the mean is= 25 So,  (20+30+15+24+y+8)/6 = 25 or, 97+y=150 or, y=53

Q: Solve the following and get the range and variance with the data 25,27,30,32,32,40,45,46,47,48

A:

Q: There is a 25% chance that a visitor to an animal shelter will adopt a dog. Out of 20 visits, what…

A: Given,n=20p=0.25X=no.of dogs that would be adopted.X~Binomial(n=20 , p=0.25)P(X=x)=cxn px(1-p)n-x ;…

Q: Which of the following best describes the variance for this sample of observations: 2.3, 4.5, 6, 8…

A: In this question, we have data for which we have to calculate the standard deviation and tell that…

Q: Which of the following could be the median of the waiting times, in minutes? O 17.25 O 15.00 O 12.25…

A: Given: The histogram below displays the frequencies of waiting times, in minutes, for 175 patients…

Q: A pollster wants to know the average income of those who supported John McCain for president. He…

A: Here the sample data is collected and the mean is calculated from it. Hence we have calculated the…

Q: College freshmen took a psychology exam. If the mean is 80, the SD is 10, and the scores have normal…

A: Follow the procedure given below.

Q: (n + 1) / 2 is the value of the median in the ranked data Select one : True False

A: Ranked Data: Ranked Data is the data which is not grouped Median is the middle most value in the…

Q: The distribution of the number of chocolate chips (x) in a cookie is shown in the following table.…

A: The given table shows the distribution of the number of chocolate chips (x).