2. Clara decided to give slippers to the street children. The slipper sizes of the children are normally distributed with a mean of 11.5 and standard deviation of 1.25. What is the corresponding percentile and x-value for street kid that has a z-score of -3.1?

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A: formula used  xa×xb=xa+blet  A=12x4y8z74xy3z2

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A: Given,          A triangle is shown below :

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Q: 3.) -бп — 20 %--2n + 4(1 — Зп)

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