Given that, a random variable Y follows normal distribution with mean of 100 and standard deviation...

Given that, a random variable Y follows normal distribution with mean of 100 and standard deviation of 20. Find P(Y < 140) ?

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Expert Solution

Y follows N(100,20²) z=Y-100/20 follows N(0,1)

P(Y<140)=P(Y-100/20<140-100/20)=P(Z<2)=0.9772Please DO UPVOTE

orchestra answered 1 year ago

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