Answered: Assume that private preschool costs in…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section: Chapter Questions

Problem 29T

See similar textbooks

Related questions

Question

Assume that private preschool costs in the city are normally distributed. The average
amount that NYC parents pay for private preschool is � =$27,500 a year with � = $7, 740.

a) Find the probability a preschool in NYC is less than $20,000 a year.

b) Find the probability that for three families, the average amount a preschool in NYC
will cost them will be more than $40,000 a year.

c) Find the probability that a preschool will be between $18,000 and $35,000 a year.

d) Find the probability that for 9 families, the average amount a preschool in NYC will
cost them will be less than $32,000 a year.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution