Answer in Statistics and Probability for Lazysloth #248754
October 24th, 2022
Let “X=” the time it takes to assemble a car in a certain factory: “Xsim N(mu, sigma^2).”
Given “mu=20 h, sigma=2 h.”
“P(X<24)=P(Z<dfrac{24-20}{2})=P(Z<2)”
“approx0.977250”
“P(Xgeq22)=1-P(X<22)=”
“1-P(Z<dfrac{22-20}{2})=1-P(Z<1)”
“approx0.158655”
1.
“0.977250(25)=24(cars)”
2.
“0.158655(25)=4(cars)”