Question
Quiž: W2: Assignment 3 Quiz This Question: 5 pts 20110(10 complete This Qui50 A ceitain group of test subjects had pulse rates with a mean of ra.9 beats per mrute and a standand devlatin of 10.7 besats per mnite Woul3 1 be urusical tor one of the Jest suejects to nave a pote e 45 3 beats per minute? hMinimum "usuar vakoe 526 beats per minute Type an inieger ar a decimal.) Maximum 'usuar value-954 beats per minute Type an integer or a decima ) ls 45 3 beats per minute an unusual pulse rate? O A. Yes, because it ts between the minimum and masemum usuar vatues B. Yes, because t is i larger than the maxmum usua" value between the mirsmum and maximum suar values because O D. No, because it is smaler than the mnimum usua" value. O E. Yes, because Rs smaler than the mnimum "usuat value ° F. No, because t is tanger Tan the manrmum-usuar ala Click tn select your answerns
Explanation / Answer
Mean = 73.9 bpm
Stdev = 10.7 bpm
The definition of unusual is having 2 deviations above or below the deviation. Hence,
Min "unusal" value is 73.9 - 2*10.7 = 52.5bpm
Max "unusal" value is 73.9 + 2*10.7 = 95.3bpm
So, a value lesser than the min "unusual" is unsual.
A value of 45.3 is therefore unusual as it is lesser than 52.5 bpm
E is the right option
