) If you 0.288 0.432 0.648 0.936 Submit Answer Tries O/2 2) If you randomly obse
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Question
) If you 0.288 0.432 0.648 0.936 Submit Answer Tries O/2 2) If you randomly observe 20 cars, what is the probability that fewer than 12 but more than 6 have had their windows properly cleaned? (You should use MINITAB to do this question) 0.0.1 0.1-0.2 0.2-0.3 0.3-0.4 0.4-0.5 0.5-0.6 0.6-0.7 0.7-0.8 0.8-0.9 O0.9-1.0 Submit Answer Tries 0/2 3) If you 200 cars, and let X denote the number with properly.cleaned windows, what is the mean of x? 120 150 Submit Answer Tries 0/2 4) If you randomly observe 250 cars, and let X denote the number with properly cleaned windows, what is the variance of X? 6.93 7.75 80 100 120 150 Submit Answer Tries 0/2Explanation / Answer
a) P = 3C2 * 0.4^2* 0.6= 3*0.16*0.6=0.288
b) P=0.97897107252-0.25001067194= Between 0.7 and 0.8
c) Mean = np=200*0.4=80
d) Variance = npq=200*0.4*0.6=48
e) Probability=0.10955694136 = 0.0-0.20
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