The amount spent on textbooks for the fall term was recorded for a sample of five university students - $400, $350, $600, $525, and $450. Calculate the value of the sample standard deviation for the data.
A) $99.37
B) $98.75
C) $450
D) $250

Question

Quizplus · Accepted Answer

To calculate the sample standard deviation, first find the mean of the data: (400 + 350 + 600 + 525 + 450) / 5 = 465. Then, calculate the squared differences from the mean, sum them, divide by (n-1) where n is the sample size, and take the square root: sqrt(((400-465)^2 + (350-465)^2 + (600-465)^2 + (525-465)^2 + (450-465)^2) / 4) = $99.37.

The Amount Spent on Textbooks for the Fall Term Was