na batch of 23 pedometers, 3 are believed to be defective. A quality-control engineer randomly selects 7 units to test. Let random variable X-the number of defective units that are among the 7 units tested. Find the probability mass function f(x)=P(X=x), and sketch its histogram . Find PX=1). What does this number represent? Find PX2 1). What does this number represent? Using the hypergeometric probability distribution model, set up an expression that can be used to find a single ordered pair in the probability mass function f(x)=P(X-x). (136) Find the probability mass function f(x)=P(X=x) OA. (Simplify your answers.) Type an ordered pair. Use a comma to separate answers as needed. Round to five decimal places as needed.) etx=the number of defective pedometers among the 7 units tested, and let y=f(x). Choose the correct histogram below. OB p. Find PX 1) x-1)-(Round to five decimal places as needed.) What does P(X1) represent? OA. This is the probability that exactly one of the 7 pedometers chosen for inspection was defective. OB. This is the probability that at least one of the 7 pedometers chosen for inspection was defective. OC. This is the probability that the first of the 7 pedometers chosen for inspection was defective. OD. This is the probability that only 1 out of the 23 pedometers was defective. Find PX21) (x21)-(Round to five decimal places as needed.) What does P(X2 1) represent? OA. This is the probability that exactly one of the 7 pedometers chosen for inspection was defective OB. This is the probability that at least 1 out of the 23 pedometers was defective. OC. This is the probability that some pedometers after the first of the 7 pedometers chosen for inspection were defective This is the probability that at least one of the 7 pedometers chosen for inspection was detective Q Q

Use this information about the overhead reach distances of adult females: µ = 205.5 cm, σ = 8.6 cm, and overhead reach distances are normally distributed (based on data from th Federal Aviation Administration) If 40 adult females are randomly selected, find the probability that they have a mean overhead reach between 204.0 cm and 206.0 cm.

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