Author Question: If a sample includes three individuals with scores of 2, 3, and 4, the estimated population variance ... (Read 79 times)

P68T · **on:** Jun 20, 2018

If a sample includes three individuals with scores of 2, 3, and 4, the estimated population variance is

A) 1
B) 1.33
C) 2
D) 3.67

Question 2

If the mean score on a creativity test is 20, the standard deviation is 5, and the distribution is normal, the percentage of people who would obtain scores between 15 and 25 is

A) 34
B) 14 + 34 = 48
C) 50
D) 34 + 34 = 68