Saturday
March 25, 2017

Post a New Question

Posted by on .

The true highway mileage, Y, of a specific brand of hybrid vehicle has a normal distribution with a mean of 42 and a standard deviation of 1.5. Find the probability that a randomly selected hybrid vehicle gets more than 38 miles to the gallon.

  • statistics - ,

    μ=42
    σ=1.5
    so
    Z(38)=(38-μ)/σ
    Look up a normal distribution table for the probability of exceedingZ(38), which is the same as the probability of not exceeding -Z(38).

    Post your answer for checking if you wish.

  • statistics - ,

    .9961

  • statistics - ,

    .0039 or 39%

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question