MATH 302 EXAM QUESTIONS AND ANSWERS | VERIFIED SOLUTION
MATH 302 EXAM QUESTIONS AND ANSWERS Question 1 of 20 1.0/ 1.0 Points A sample of 20 observations has a standard deviation of 4. The sum of the squared deviations from the sample mean is: A. 28 8 B. 30 4 C. 32 0 D. 40 0 Answer Key: B Question 2 of 20 1.0/ 1.0 Points Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately what percent of the observations are within two standard deviations of the mean? A. 95 % B. 68 % C. 50 % D. 99. 7% Answer Key: A Question 3 of 20 1.0/ 1.0 Points Which of the following statements is true regarding the data set 10, 10, 10, 10, and 10?
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math 302 exam questions and answers question 1 of 20 10 10 points a sample of 20 observations has a standard deviation of 4 the sum of the squared deviations from the sample mean is a 28 8 b 3