Author Question: The variable X is normally distributed. The mean is = 15.2 and the standard deviation is = 0.9. ... (Read 49 times)

maegan_martin · **on:** Jul 25, 2018

The variable X is normally distributed. The mean is = 15.2 and the standard deviation is = 0.9.
Find P(X > 16.1).

A) 0.1587 B) 0.1357 C) 0.1550 D) 0.8413

Question 2

The class width is the difference between

A) The high and the low data values
B) The largest frequency and the smallest frequency
C) Two successive lower class limits
D) The upper class limit and the lower class limit of a class