Question

The attached data contains a sample of resting heart rates for 40 adult Americans who visited a local doctor’s office. Assume that this sample is representative of all adult Americans. Your goal is to visualize the data set and answer probability questions based on it. This problems has 5 parts and is worth 25 points total.

Pulse
56
60
62
62
64
64
66
68
68
72
72
72
72
72
72
72
74
74
76
76
78
78
78
78
78
78
78
80
82
82
82
88
90
90
90
96
98
98
100
104

a) Fill out the frequency table (5 pts)		Bins	Freq
		50-59
		60-69
		70-79
		80-89
		90-99
		100-109

b) Insert histogram (5pts)

c) Find the probability of X less than 60 beats (5 pts)		P(X<60) =
d) Find the probability of X greater than 80 beats (5 pts)		P(X>80) =
e) Find the probability of X between 60 and 80 beats (5 pts)		P(60<X<80) =

Answer 1

solution- a) from giver data. Histogram 113) class frequency (12) 56-65 12 6 10 66-75 12 8 76-85 13 116) (5) (4), 86 -95 4 5 96 - 105 2 56 66 76 86 96 166 © Mean S=0.55. ll= 775, P12260) = Plzc 66-77.5 11.55 =PLZC-15217) to using distribution left tail. Por <66) = 0.06404 d) p (2780) = P1z7 80-77.5 PC270-2173) 11.55 F e) 60-77.5 a-ll < using distribution right tail I pla780)=0.4139 P(60ca286) pl 80-7715 = P(-1.5217 cz 20.1152) P(Z20.9193) – plZc-1.5214) 0:5860 - 0.0640' TP160x480) 11:55 < 1115 = 0.5220