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Rus_ich [418]
3 years ago
12

Estimate by rounding to the nearest integer.

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0
If you estimate it the equation is -10+12=9+12=21 or 2=21=21 so the answer is false<span />
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Running times for 400 meters are Normally distributed for young men between 18 and 30 years of age with a mean of 93 seconds and
Luda [366]

Answer:

C. 45 and 141 seconds

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 93 seconds

Standard deviation = 16 seconds

99.7% of running times are approximately between:

By the Empirical rule, within 3 standard deviations of the mean, so between 3 standard deviations below the mean and 3 standard deviations above the mean

3 stnadard deviations below the mean

93 - 3*16 = 45 seconds

3 standard deviations above the mean

93 + 3*16 = 141 seconds

The correct answer is:

C. 45 and 141 seconds

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3 years ago
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Answer:

The correct answer is option (E)

Step-by-step explanation:

Solution to the question

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For the p-value we have,

P-value: Let us assume that the null hypothesis is true, then the probability of observing the sample statistics or the  more extreme,

Therefore if p= 0.80, the probability of observing or detecting proportion of samples is of at least 0.84 or at most 0.76 is 0.273.

8 0
3 years ago
Find the length indicated.<br> ?<br> 5<br> 5) G<br> 17<br> A) 12<br> B) 36<br> C) 21
Crank

Answer:

your answer would be A.)12

Step-by-step explanation: You needed to find out what number you can put for it to add up to the number on the bottom line, 17. So you would add (12+5=17) , And you would get the same number as the number  on the bottom line.

~hope this explanation has helped~

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Answer:

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Step-by-step explanation:

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