Math Problem Statement
A high school baseball player has a 0.182 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 2 hits in the game?
Solution
To solve this, we need to use the binomial probability distribution since the number of hits in the game follows a binomial pattern: each at-bat is an independent trial with two outcomes (hit or no hit). Here's how we proceed:
Problem Breakdown:
- The player's batting average (probability of getting a hit in a given at-bat) is .
- The number of at-bats (trials) in the game is .
- We need to find the probability that the player gets at least 2 hits in 5 at-bats, which means the player gets 2 or more hits.
Let be the random variable representing the number of hits the player gets. We are looking for:
This is equivalent to:
We'll now calculate and using the binomial probability formula:
Where is the binomial coefficient and represents the number of ways to choose successes (hits) from trials (at-bats).
Step 1: Compute
Step 2: Compute
Step 3: Compute
Now, we can calculate the probability of getting at least 2 hits:
Final Answer:
The probability that the player will get at least 2 hits in the game is approximately 0.315 or 31.5%.
Would you like more details on any part of the calculation, or do you have other questions? Here are some related topics you might find interesting:
- What is the binomial probability distribution and when do we use it?
- How do we calculate binomial coefficients?
- What are the key properties of a binomial distribution?
- How does changing the probability of success affect the outcome of a binomial distribution?
- Can we use this method to calculate the probability of exactly 3 hits or more?
Tip: When working with binomial probabilities, always remember to check if the trials are independent and if the probability of success remains constant for each trial.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Binomial Probability Distribution
Probability Theory
Combinatorics
Formulas
P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)
P(X ≥ k) = 1 - P(X < k) = 1 - (P(X = 0) + P(X = 1))
Theorems
Binomial Theorem
Suitable Grade Level
Grades 9-12
Related Recommendation
Binomial Probability of Getting at Least 4 Hits in 9 At-Bats
Calculate the Probability of a Baseball Player Getting Exactly 2 Hits in 7 At-Bats
Calculate Probability of Baseball Player's Hits | Exactly 2 and At Least 2 Hits
Probability of Getting at Least 4 Hits in 7 At-Bats with a 0.269 Batting Average
Binomial Distribution Probability of Baseball Player Getting At Least 5 Hits in 7 At-Bats