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Harlamova29_29 [7]
3 years ago
11

When Natalie runs the 400 meter dash, her finishing times are normally distributed with a mean of 71 seconds and a standard devi

ation of 2.5 seconds. What percentage of races will her finishing time be between 71 and 77 seconds, to the nearest tenth?
Mathematics
1 answer:
adell [148]3 years ago
3 0

Answer:

49.2%

Step-by-step explanation:

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Kate scored 85,78,72, and 81 on 4 math tests. What score does she need on the fifth test to have at least an 80 average?
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I am not good in this kind of question so maybe 84?

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Leviafan [203]

Answer:

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Step-by-step explanation:

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Step 3: Divide the sum from Step 2 by the denominator: 15 ÷ 8 = 1.875.

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motikmotik
<h3>Answer:  Coefficient</h3>

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Hi!

The set up for the question is like this:

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