Ask Question
13 April, 20:10

The weight of laboratory mice follows a normal distribution, with a mean of 0.68 ounce and a standard deviation of 0.02 ounce. What percentage of the mice weigh between 0.62 ounce and 0.74 ounce?

A. 99.7%

B. 95%

C. 68%

D. 47.5%

E. 34%

+2
Answers (2)
  1. 13 April, 23:04
    0
    A. 99.7%

    Step-by-step explanation:

    Calculate each z-score.

    z = (x - μ) / σ

    z = (0.74 - 0.68) / 0.02

    z = 3

    z = (x - μ) / σ

    z = (0.62 - 0.68) / 0.02

    z = - 3

    You can use a z-score table, or use the empirical rule.

    P (-3 < z < 3) = 99.7%.
  2. 13 April, 23:33
    0
    The answer is letter D
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The weight of laboratory mice follows a normal distribution, with a mean of 0.68 ounce and a standard deviation of 0.02 ounce. What ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers