If X is a normal variable with a standard deviation of 2 and Pr(X<9) = 0.8 Find the mean. Im new to the whole normal distribution thing so i would really appreciate some help. thanks
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Originally Posted by Kash If X is a normal variable with a standard deviation of 2 and Pr(X<9) = 0.8 Find the mean. Im new to the whole normal distribution thing so i would really appreciate some help. thanks Find the value z* of Z such that Pr(Z < z*) = 0.8. Substitute this value into : . Solve for .
wow i didnt know that formula!, thanks alot!