Ask Question
22 March, 21:51

The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute and a standard deviation of 24 words per minute. What is the probability that a randomly selected sixth-grade student reads less than 100 words per minute?

+4
Answers (1)
  1. 22 March, 22:15
    0
    0.148783124

    Step-by-step explanation:

    the probability that a randomly selected sixth-grade student reads less than 100 words per minute

    P (X < 100)

    = P (z < (100 - 125) / 24))

    = P (z < - 1.0417) (from the z-table)

    = 0.148783124
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute and a standard deviation of 24 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers