(11)
Given
Less than 9.1:
P(X < 9.1) = ?
We know that the Standard Normal Variate is Z
Therefore P(X<9.1) = P(Z < -0.18) = ?
Therefore P(Z < -0.18) = ?
We have to find out the Probability of Shaded Area
The required Solution is 70x0.4286 = 30.002
NOTE:
To get the Value of P(-0.18 < Z <0) = P(0 < Z < +0.18);Search the Probability value which is intersected between the Z values 0.1 and 0.08; we will get 0.0714 in the standard normal tabulated value; which is posted below
11. (18 points on the replacement times for washing machines woman 3 years and standard deviation...
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