Round all answers to 4 decimal places where possible. Let X Be the cost for a randomly selected college. a. What is the distribution of X? X - N( b. Find the probability that a randomly selected Private nonprofit four-year college will cost less than 24,7 per year. c. Find the 78th percentile for this distribution. $ (Round to the nearest dollar.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
**Title: Understanding Distribution and Percentiles in College Tuition Costs**

**Introduction:**

In this lesson, we will explore the distribution of tuition costs for private nonprofit four-year colleges. Specifically, we will analyze the average cost, the standard deviation, and how to calculate probabilities and percentiles using the normal distribution.

**Problem Statement:**

Private nonprofit four-year colleges charge, on average, $27,552 per year in tuition and fees. The standard deviation is $7,325. Assume the distribution is normal. Let \( X \) be the cost for a randomly selected college. Round all answers to 4 decimal places where possible.

**Tasks:**

a. **Determine the Distribution of Tuition Costs:**

   What is the distribution of \( X \)? Express the normal distribution in the form of \( X \sim N(\mu, \sigma) \).

b. **Calculate the Probability:**

   Find the probability that a randomly selected private nonprofit four-year college will cost less than $24,769 per year.

c. **Find the 78th Percentile:**

   Calculate the 78th percentile for this distribution of tuition costs. Round to the nearest dollar.

**Conclusion:**

Through these exercises, you will gain a practical understanding of how normal distributions are used to model real-world data, like college tuition costs, and how to apply statistical methods to interpret that data.
Transcribed Image Text:**Title: Understanding Distribution and Percentiles in College Tuition Costs** **Introduction:** In this lesson, we will explore the distribution of tuition costs for private nonprofit four-year colleges. Specifically, we will analyze the average cost, the standard deviation, and how to calculate probabilities and percentiles using the normal distribution. **Problem Statement:** Private nonprofit four-year colleges charge, on average, $27,552 per year in tuition and fees. The standard deviation is $7,325. Assume the distribution is normal. Let \( X \) be the cost for a randomly selected college. Round all answers to 4 decimal places where possible. **Tasks:** a. **Determine the Distribution of Tuition Costs:** What is the distribution of \( X \)? Express the normal distribution in the form of \( X \sim N(\mu, \sigma) \). b. **Calculate the Probability:** Find the probability that a randomly selected private nonprofit four-year college will cost less than $24,769 per year. c. **Find the 78th Percentile:** Calculate the 78th percentile for this distribution of tuition costs. Round to the nearest dollar. **Conclusion:** Through these exercises, you will gain a practical understanding of how normal distributions are used to model real-world data, like college tuition costs, and how to apply statistical methods to interpret that data.
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman