Suppose a normally distributed random variable x has a mean of 100 and P (x < 90) = 0.40. What is the probability that x is between 90 and 110? le. What is P (90

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A: Given that: 10% of HCT students have overweight. This means P(overweight)= 10%=0.10

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A: Given, p = 18% = 0.18 n = 900

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Q: 1.In the past, 55% of HC chemistry students have earned a grade of 3.0. From a sample of 40 students…

A: Given,n=40P=0.55mean(μ)=np=40×0.55=22standard deviation (σ)=np(1-p)σ=40×0.55×(1-0.55)σ=3.1464

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Q: The Food Marketing Institute shows that 16% of households spend more than $100 per week on…

A: From the provided information, p = 0.16 Sample size (n) = 800

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A: The probability can't be exceed than 1 for any distribution.

Q: The Food Marketing Institute shows that 16% of households spend more than $100 per week on…

A: Given data,      P=0.16      n=800  1. σP =P 1-Pn

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