Problem 2. Twenty students from a class of 150 were randomly selected to take a survey. Compute the standard deviation for the data.
2, 2.5, 3, 3, 3.1, 3.4, 3.5, 3.6, 3.8, 4, 4.2, 4.2, 4.3, 4.5, 4.9, 5, 5.4, 6, 6.5, 6.7

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.