Sum of a pair of die2345879No. of appearances57148126910117121In a game of throwing a die twice, 50 games were played and the frequency of the sum of each pair was listedbelow; find the mean, variance, and the standard deviation of the data:8

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Answered: Sum of a pair of die 2 3 4 5 6 7 8 9…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A developmental psychologist is interested in studying how long babies gaze at a photograph of a human face. To test this question, she shows a picture to a sample of six babies and records the length of their gaze in seconds. The data are as follows: 12, 17, 18, 20, 20, 29. Calculate the mean, median, mode, range, variance and standard deviation for the sample.
The ratio of weight of the students is as follows in table 1. Find the standard deviation of the students' weight. Table – 1 Number of students and their weight Student No. Weight (kg) 1 80 2 75 3 66 4 81 71 69 7 75
Assume the mean and variance of 5 observations are 1 and 5, respectively. If 5, as one of these five observations, is removed, which of the followings gives the variance of the remaining observations? Select one: 2 1.25 0 None 0.75
If the mean of a frequency distribution is 100 and the coefficient of variation is 45%, then what is the value of the variance? 1. 2025 2. 450 3. 45 4. 4.5
Consider the following data: −10, −10, 0, 3, −10, 3, 3 Step 1 of 3: Calculate the value of the sample Variance. Round your answer to one decimal place. Step 2 of 3: Calculate the value of the sample deviation. Round your answer to one decimal place. Step 3 of 3: Calculate the value of the range.
The following sample observations were randomly selected: X Y 5 4 10 7 3 7 4 6 6 5 What is the coefficient of correlation? Select one: a. 0.185 b. 0.001 c. 0.034 d. 0.089
The mean and variance of a set of 9 observations have magnitudes 8 and 3 respectively. If two observations, of magnitude 9 and 7 are removed from the original set, then the magnitude of the new variance is approximately: A. 3.7 B. 3.8 C. 3.6 D. 3.5
What is the variance for the following set of scores: 2, 2, 2, 2, 2. A. 0 B. 2 C. 4 D. 25
Find the variance of the given table in the attached photo
If the coefficient of variation is 40% and the mean is 70, then the variance is a. 28. b. 2800. c. 1.75. d. 784.

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Sum of a pair of die 2 3 4 5 6 7 8 9 No. of appearances 5 7 1 8 1 2 6 10 8 11 7 12 1 In a game of throwing a die twice, 50 games were played and the frequency of the sum of each pair was listed below; find the mean, variance, and the standard deviation of the data: