# Question

Assume that the random variable X is normally distributed, with mean µ = 50 and standard deviation σ = 7. Compute the following probabilities. Be sure to draw a normal curve with the area corresponding to the probability shaded.

P(55 ≤ X ≤ 70)

P(55 ≤ X ≤ 70)

## Answer to relevant Questions

Assume that the random variable X is normally distributed, with mean µ = 50 and standard deviation σ = 7. Compute the following probabilities. Be sure to draw a normal curve with the area corresponding to the probability ...Assume that the random variable X is normally distributed, with mean µ = 50 and standard deviation σ = 7. Find each indicated percentile for X. The 81st percentile? Electric manufactures a decorative Crystal Clear 60-watt light bulb that it advertises will last 1500 hours. Suppose that the lifetimes of the light bulbs are approximately normally distributed, with a mean of 1550 hours and ...Fast-food restaurants spend quite a bit of time studying the amount of time cars spend in their drive-through. Certainly, the faster the cars get through the drive-through, the more the opportunity for making money. QSR ...A random sample of 25 years between 1890 and 2011 was obtained, and the amount of snowfall, in inches, for Memphis was recorded. Use a normal probability plot to assess whether the sample data could have come from a ...Post your question

0