In a distribution exactly normal 7% of items are under 35 and 89% of the items are under 63. Find the probability that an item selected at random lies between 45 & 56.

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written 9.4 years ago by

teamques10 ★ 70k

modified 3.0 years ago by

sagarkolekar ★ 11k

engineering mathematics

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written 9.4 years ago by

teamques10 ★ 70k

Let the mean and standard deviation be $‘m’$ and $'\sigma'$

Let SNV corresponding to $x = 35$ be $z_1$

$$P (x \lt 35) = 35\% $$

$ P (z \lt Z_1) = 0.07 \\ 0.5 – \text { Area between } ‘z = 0’ \space \space to\space \space ‘z = …

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