Acertain group of test subjects had pulse rates with a mean of 83.683.6 beats per minute and a standard deviation of 10.310.3 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 134.2134.2 beats per minute significantly low or significantly high? (a) significantly high comma because it is greater than two standard deviations above the mean. significantly high, because it is greater than two standard deviations above the mean.(b) significantly low comma because it is less than two standard deviations below the mean. significantly low, because it is less than two standard deviations below the mean.(c) neither comma because it is within two standard deviations of the mean. neither, because it is within two standard deviations of the mean.(d) it is impossible to determine with the information given.