40) In a Gallup poll of randomly pelected adul, 6% said that they worry about id

Question

40) In a Gallup poll of randomly pelected adul, 6% said that they worry about identty theft For 40) a group of 1013 adult, the mean of those who do not worry about identify cheft ls clocet to A) 34 odalteB3 9 adults three years old (baced on data from tihe Department of Traneportation). The random variable x Re Ch C) 34 adults D) 66 adulta 41) The tollowing table describes the resulta of roadworthiness tets of Ford tects of Ford Focus cars that are 4) reprecents the numbet of cars that taled among slx that weze tected for 0 0.377 1 0399 2 0.176 4 0.005 0+ Find the probablity of getting three or moze care that fal among als care teched A) 0005 B) 0.222 C) 0046 D) 0043 42) Find the standard derlation for the binomial distribution which has 43 andp 3/5

Explanation / Answer

Probability of worry = 0.66(66%)

n= 1013

Probbaility of do not worry= 1- P(Worry)= 1- 0.66= 0.34

Expected value: E(x)= n*p(do not worry)= 1013* 0.34= 344.42(344) adults

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