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TiliK225 [7]
3 years ago
13

Arm span is the physical measurement of the length of an individual's arms from fingertip to fingertip. A man’s arm span is appr

oximately normally distributed with mean of 68 inches with a standard deviation of 3.7 inches. Find length in inches of the 97th percentile for a man’s arm span. Round answer to 2 decimal places

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0

Answer:

The length for the 97th percentile for a man's arm span is 74.96 inches.

Step-by-step explanation:

We have a normal distribution for men's arm span, with mean of 68 inches and standard deviation of 3.7 inches.

The 97th percentil represents the value for which 97% of the observations are below.

We can search for the 97th percentile for the standard normal distribution. This will give a value z=1.88.

Then, we can convert this z-score to our distribution:

X=\mu+z\cdot\sigma=68+1.88\cdot 3.7=68+6.96=74.96

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Let

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4 0
3 years ago
Read 2 more answers
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