A certain group of test subjects had pulse rates with a mean of 80.3 beats per minute and a standard deviation of 10.4 beats per minute. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is a pulse rate of 51.1 beats per minute significantly low or significantlyhigh?

Significantly low values are ______ beats per minute or lower.

dont round the answer

Significantly high values are ______ beats per minute or higher.

dont round the answer

Is a pulse rate of 51.1 beats per minute significantly low or significantlyhigh?

a. Significantlylow, because it is lessthan two standard deviations below the mean.

b. Significantlyhigh, because it is greaterthan two standard deviations above the mean.

c. Neither, because it is within two standard deviations of the mean.

d. It is impossible to determine with the information given.