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A basketball player has a free throw success rate of 75%. If he takes 20 free th

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Question: A basketball player has a free throw success rate of 75%. If he takes 20 free throws, how many successful throws can be expected? (2019)

Options:

  1. 15
  2. 20
  3. 10
  4. 5

Correct Answer: 15

Exam Year: 2019

Solution: 

Expected successful throws = 75% of 20 = 0.75 * 20 = 15.

A basketball player has a free throw success rate of 75%. If he takes 20 free th

Practice Questions

Q1
A basketball player has a free throw success rate of 75%. If he takes 20 free throws, how many successful throws can be expected? (2019)
  1. 15
  2. 20
  3. 10
  4. 5

Questions & Step-by-Step Solutions

A basketball player has a free throw success rate of 75%. If he takes 20 free throws, how many successful throws can be expected? (2019)
  • Step 1: Understand that the player's success rate is 75%. This means he makes 75 out of every 100 free throws.
  • Step 2: Convert the success rate from a percentage to a decimal. 75% as a decimal is 0.75.
  • Step 3: Determine how many free throws the player will take. In this case, he will take 20 free throws.
  • Step 4: Calculate the expected number of successful throws by multiplying the success rate (0.75) by the number of free throws (20).
  • Step 5: Perform the multiplication: 0.75 * 20 = 15.
  • Step 6: Conclude that the expected number of successful throws is 15.
  • Probability and Expectation – Understanding how to calculate expected outcomes based on probabilities.
  • Basic Arithmetic – Applying multiplication to find a percentage of a total.
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