Solution-Calculate number of buses that have the defect

Calculate number of buses that have the defect

Assignment Help Basic Statistics

Reference no: EM131769221

Question: Suppose that six of the 15 school buses in a particular school district have developed a slight defect since their last inspection (the steering wheel shakes when braking). Five buses are to be selected for thorough inspection. Let X denote the number of buses among the five that are inspected that have the defect.

(a) The random variable X is (choose one)

(i) binomial

(ii) hypergeometric

(iii) negative binomial

(iv) Poisson.

(b) Give the sample space and formula for the PMF of X.

(d) Give the expected value and variance of X.

Reference no: EM131769221

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Calculate number of buses that have the defect

Reference no: EM131769221

Reference no: EM131769221

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