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hichkok12 [17]
3 years ago
13

The weight of laboratory mice follows a normal distribution, with a mean of 0.68 ounce and a standard deviation of 0.02 ounce. W

hat 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%
Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0
The answer is letter D
Soloha48 [4]3 years ago
6 0

Answer:

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%.

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Look at the image below where I labeled the sides

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F(x) = 3x + 1

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<span>x = (y - 1)/3
</span>
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</span>f⁻¹(7)<span> = 2</span>
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