Question

Assuming the test scores have a Normal Distribution, label the heights at the bottom of the normal curve below. The middle 68% of the class would score between what two values (what range of scores)?Between and99.7% of the students would have test scores between what two values (what range of scores)?Between and

Answer 1

Given:

Mean = 74

Standard deviation: 8

A sample of a normal distribution curve is shown below

Thus, for the question given to us,

The curve is shown below

Thus,

50 goes into the first box

58 goes into the second box

66 goes into the third box

74 goes into the fourth box

82 goes into the fifth box

90 goes into the sixth box

98 goes into the seventh box

(2) The middle 68% of the class would score between 66 and 82

(3) 99.7% of the students would have a test score of Between 50 and 98

Write a sentence using the 99.7% range for Professor Ivy's class:

99.7% of the students in Professor Ivy's class: would have a test score of Between 50 and 98