B 7. Application Four classes recorded their pulse rates.
able[[Class A,63,78,79,75,73,72,62,75,63,77,77,65,70,69,80],[Class B,72,66,73,80,74,75,64,68,67,70,70,69,69,74,74],[Class C,68,75,78,73,75,68,71,78,65,67,63,69,59,68,79],[Class D,78,75,76,76,79,78,78,76,74,81,78,76,79,74,76]]
(a) Use the mean and standard deviation to determine which class has the lowest pulse rate and which class has the most consistent pulse rate.
(b) Does the median and interquartile range contradict your results in part (a)? Why or why not?
7. Application Four classes recorded their pulse rates.
Class A
63
78 79
75
73
72
62
75
63
77
77
65
70 69 80
Class B
72
66
73
80
74 75
64
68
67
70
70
69
69 74 74
Class C
68
75 78
73 75
68
71
78
65
67
63
69
59 68 79
Class D
78
75 76
76 79
78
78
76 74
81
78
76
79 74 76
a Use the mean and standard deviation to determine which class has the
lowest pulse rate and which class has the most consistent pulse rate. (b) Does the median and interquartile range contradict your results in part (a)? Why or why not?