4. Elongation (in percent) of treated metal plates are random with probability density function: f (x) = ,5 < x < 25 600 Find the value of c which makes f(x) a properly defined pdf. Find the variance of elongation. Find the probability that the elongation is between 10% and 15% or between 12% and 20%. That is if E is the random variable representing elongation, find P(10 < E < 15 or 12 < E < 20). а. b. с.

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4. Elongation (in percent) of treated metal plates are random with probability density function: f (x) =
,5 < x < 25
600
Find the value of c which makes f(x) a properly defined pdf.
Find the variance of elongation.
а.
b.
Find the probability that the elongation is between 10% and 15% or between 12% and 20%. That is if E is the random variable representing
elongation, find P(10 < E < 15 or 12 < E < 20).
с.
Transcribed Image Text:сх 4. Elongation (in percent) of treated metal plates are random with probability density function: f (x) = ,5 < x < 25 600 Find the value of c which makes f(x) a properly defined pdf. Find the variance of elongation. а. b. Find the probability that the elongation is between 10% and 15% or between 12% and 20%. That is if E is the random variable representing elongation, find P(10 < E < 15 or 12 < E < 20). с.
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