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Hatshy [7]
4 years ago
12

In her last race, bergen swam 1,500 meters in 30 minutes.on average, how many meters did she swim per minutes?

Mathematics
1 answer:
Lelechka [254]4 years ago
4 0
What you will need to do is take 1,500 which is the distance by 30 the speed to get 1500/30 which will get you 50 if you want to check your work divide 1500 by 50 and see if you get 30

Answer : 50 Meters per Minuite
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In a randomly selected sample of 1169 men ages 35–44, the mean total cholesterol level was 210 milligrams per deciliter with a s
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Answer:

The highest total cholesterol level a man in this 35–44 age group can have and be in the lowest 10% is 160.59 milligrams per deciliter.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

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In this problem, we have that:

\mu = 210, \sigma = 38.6

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This is the 10th percentile, which is X when Z has a pvalue of 0.1. So X when Z = -1.28.

Z = \frac{X - \mu}{\sigma}

-1.28 = \frac{X - 210}{38.6}

X - 210 = -1.28*38.6

X = 160.59

The highest total cholesterol level a man in this 35–44 age group can have and be in the lowest 10% is 160.59 milligrams per deciliter.

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3 years ago
Read 2 more answers
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Answer:

The second and fourth option

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2 years ago
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