A company has 400 employees. Their mean income is $$\(\$ 20,500\)$$, and the standard deviation of their incomes is $$\(\$ 3,750\)$$. The distribution of incomes can be approximated with a normal curve. How many of the 400 employees do you expect to have an income of between $$\(\$ 13,000\)$$ and $$\(\$ 28,000\)$$ ?

A.
50
B.
100
C.
200
D.
380
E.
400
Statistics
AP
College Board
Exam No:AP Statistics Problem Set 11 Year:2024 Question No:40

Answer:

D

Knowledge points:

1.10 The Normal Distribution
1.7 Summary Statistics for a Quantitative Variable
4.7 Introduction to Random Variables and Probability Distributions

Solution:

Download APP for more features
1. Tons of answers.
2. Smarter Al tools enhance your learning journey.
IOS
Download
Android
Download
Google Play
Download