SOLUTION: . Using the 68- 95- 99.7 Rule. Assume the resting pulse rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68- 95-

Algebra ->  Probability-and-statistics -> SOLUTION: . Using the 68- 95- 99.7 Rule. Assume the resting pulse rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68- 95-      Log On


   

Question 839127: . Using the 68- 95- 99.7 Rule. Assume the resting pulse rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68- 95- 99.7 rule to find the following quantities.
a. Percentage of pulse rates less than 70
c. Percentage of pulse rates between 55 and 70
e. Percentage pulse of rates between 70 and 100.
Answer by stanbon(75887) About Me  (Show Source):
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Using the 68- 95- 99.7 Rule. Assume the resting pulse rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68- 95- 99.7 rule to find the following quantities.
a. Percentage of pulse rates less than 70
Ans: 50% because 70 is the mean.
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c. Percentage of pulse rates between 55 and 70
Ans: (1/2)68 = 34% because 55 is one std below the mean.
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e. Percentage pulse of rates between 70 and 100.
Ans: (1/2)95 = 47.5% because 100 is 2 std above the mean.
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Cheers,
Stan H.
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