To evaluate the quality of the cellular
phones coming off the assembly line, the
manufacturer takes one every half hour
and tests it. About 1 out of every 10,000 is
found to have a minor mechanical problem.
The company assumes from this data that
about 1 out of every 10,000 cellular phones
they produce will be returned for
mechanical problems after being
purchased. Determine whether this
conclusion is valid. Justify your answer.

21/58.

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first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

c

step-by-step explanation:

i think because what else can be a sample of every member