22
AssignmentMultiple Select
Standard Deviation
Question 22 • EAP-Algebra Functions and Data Analysis B CR
Given that z = –2 and z = –1, which of the following do you know?
Answer
A
The variance is 10.B
The standard deviation is 30.C
The mean is 80.D
The median is 40.E
The data point x = 20 is 2 standard deviations from the mean.F
The data point x = 50 is 1 standard deviation from the mean.G
The data point x = 45 has a z-value of 1.5.