Question

Quiz: Week 2 Quiz Submit Quiz "The This Quiz: 50 pts possible ALL MATS This Question: 5 pts Quest the alphabet, I'd put U and I Ted is not particularly creative He uses the pickup line "If I could rearrange together" The random variable x is the number of girts Ted approaches before encountering : The whether the table describes a probability distribution If it does, find its mean and 2 0.027 3 0.118 4 0.272 5 0234 standard deviation A: from Find the mean u of the random variable x Select the correct choice your choice below and, if necessary, fi in the answer box to complete o: The (Round to one decimal place as needed ) O B. The table is not a probability distribution Fnd the standard deviation σ of the random vanable x Select the correct choice below and, if necessary, fil in the answer box to complete your choice o: The c (Round to one decimal place as needed ) o. The da O B. The table is not a probability distribution O: The da Click to select and enter your answeris) O Type here to se

Answer 1

Solution:-

a) The mean u of the random variable x is 2.667.

b) The standard deviation $\sigma$ of the random variable x is 1.336.

$\sigma = \sqrt{[(x-\mu )^{2}]\ast P(x)}$

$\sigma = \sqrt{1.784825628}$

$\sigma = 1.336$