Author Question: Given that 800 people were aged between 25 and 40, approximately how many had a systolic blood ... (Read 17 times)

ss2343 · **on:** Jul 25, 2018

Given that 800 people were aged between 25 and 40, approximately how many had a systolic blood pressure reading of 140 or higher?

A) 88 B) 8 C) 11 D) 64

Question 2

According to a college survey, 22 of all students work full time. Find the standard deviation for the random variable X, the number of students who work full time in samples of size 16.

A) 2.75 B) 3.52 C) 1.66 D) 1.88