When practicing basketball, Rachel has a 67% chance of making a free throw. She shoots 12 free throws. Let the random variable X be the number of free throws she makes. Find the probability she makes exactly 5 free throws. Give your answer to at least three nonzero decimal places. What is the expected value of X. Interpret this value.
When practicing basketball, Rachel has a 67% chance of making a free throw. She shoots 12 free throws. Let the random variable X be the number of free throws she makes. Find the probability she makes exactly 5 free throws. Give your answer to at least three nonzero decimal places. What is the expected value of X. Interpret this value.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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![### Understanding Probability in Basketball Free Throws
#### Scenario
When practicing basketball, Rachel has a 67% chance of making a free throw. She shoots 12 free throws. Let the random variable \( X \) be the number of free throws she makes.
#### Problem 1: Probability Calculation
**Question:**
Find the probability she makes exactly 5 free throws. Give your answer to at least three nonzero decimal places.
**Input Box:**
```plaintext
[ ]
```
#### Problem 2: Expected Value Calculation
**Question:**
What is the expected value of \( X \)? Interpret this value.
**Input Box:**
```plaintext
[ ]
```
### Explanation
In this problem, we are dealing with a binomial distribution scenario where the probability of each free throw is constant (67%) and each trial (free throw) is independent of the others. We will calculate the probability for Rachel making exactly 5 free throws out of 12 attempts, and then compute the expected number of successful free throws.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffa45e765-9960-4eef-a64e-c33cde0da700%2Fc8be6e9f-4fb6-433b-ab1e-13f4df2cdbce%2F9moettb.png&w=3840&q=75)
Transcribed Image Text:### Understanding Probability in Basketball Free Throws
#### Scenario
When practicing basketball, Rachel has a 67% chance of making a free throw. She shoots 12 free throws. Let the random variable \( X \) be the number of free throws she makes.
#### Problem 1: Probability Calculation
**Question:**
Find the probability she makes exactly 5 free throws. Give your answer to at least three nonzero decimal places.
**Input Box:**
```plaintext
[ ]
```
#### Problem 2: Expected Value Calculation
**Question:**
What is the expected value of \( X \)? Interpret this value.
**Input Box:**
```plaintext
[ ]
```
### Explanation
In this problem, we are dealing with a binomial distribution scenario where the probability of each free throw is constant (67%) and each trial (free throw) is independent of the others. We will calculate the probability for Rachel making exactly 5 free throws out of 12 attempts, and then compute the expected number of successful free throws.
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