standard deviation of 11.2 beats per minute. Would it be unusual for one of the

Question

standard deviation of 11.2 beats per minute. Would it be unusual for one of the test subjects to have a pulse rate of 54.3 beats per minute? Minimum "usual" value beats per minute Type an integer or a decimal.) Maximum "usual" value beats per minute Type an integer or a decimal.) Is 54.3 beats per minute an unusual pulse rate? OA. Yes, because it is larger than the maximum "usual" value OB. No, because it is between the minimum and maximum "usual" values c. No, because it is smaller than the minimum "usual" value O D. No, because it is larger than the maximum "usual" value OE. Yes, because it is between the minimum and maximum "usual" values OF. Yes, because it is smaller than the minimum "usual" value

Explanation / Answer

Minimum usual value = mean - 3*s.d = 81.9 - 3*11.2 = 81.9 - 33.6 = 48.3

Maximum usual value = mean + 3*s.d = 81.9 + 3*11.2 = 81.9 + 33.6 = 115.5

Since 54.3 lies between 48.3 and 115.5, it is not an unusual pulse rate

SO option B

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