Question

e.com/courses/23539/quizzes/118512/take Question 6 7 pts Ninety-five percent of students at an elementary school are between 3.6 feet tall and 5.5 feet tall. Assume the height data at this school is normally distributed. Use the normal curve below and the empirical rule to find the the standard deviation for the height data. Enter only a number (no words or symbols), and do not round. 95% 3.6 5.5 Height in feet 0.475

Answer 1

Answer:

0.475

Explanation:

                  (1)

u – 20 = 3.6

                  (2)

u + 20 = 5.5

(2) - (1) gives:

40 = 5.5 – 3.6 = 1.9

So,

0 = 1.9/4 = 0.475