statistics

A maker of tires for cars has a multitude of data to support the fact that the lifetime of their tires follows a normal distribution with a mean of 42,100 miles and a standard deviation of 2,510 miles.

Find the probability that a randomly selected tire will have a lifetime of between 44,500 miles and 48,000 miles. Be certain that you round your z-values to two decimal places. Round your answer to 4 decimal places.

This is what I got:
0.3315

Am I correct?

  1. 👍 0
  2. 👎 0
  3. 👁 123
asked by Tanya
  1. I got .1601

    by using

    http://davidmlane.com/hyperstat/z_table.html

    just enter the values from your problem.

    1. 👍 0
    2. 👎 0
    posted by Reiny

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    five rental cars require four new tires. the price of one new tire is $84. what would be the total cost including 7% tax for new tires for all five cars?

    asked by Jason on July 5, 2012
  2. Math

    A parking lot contains a total of 52 cars and motorcycles. There are a total of 186 tires (not counting spare tires) in the lot. Assuming each car has 4 tires and each motorcycle has 2 tires, determine how many cars and how many

    asked by Kim on February 20, 2013
  3. MAT201-Basic Statistics

    A dealership sold 15 cars last month. The purchase price of the cars, rounded to the nearest thousand, is represented in the table Purchase Price/# of cars sold $15,000 3 $20,000 4 $23,000 5 $25,000 2 $45,000 1 A.Find the mean and

    asked by Pat on November 24, 2014
  4. Business Math

    The Principal of SACRO Primary is concerned that the average speed of cars travelling along Princess Road exceeds the recommended speed of 60km/h. A random sample of 10 cars had their speeds measured by radar and the results (in

    asked by James on March 30, 2016
  5. science

    One of Darren's model cars keeps rolling off its track. The other cars stays on the track. What should he do? a) change the shape of the track b)study the wheels of the car that will not stay on the track c)change the tires on all

    asked by JADEN on February 10, 2010
  6. Math (Stats)

    Consider the the distribution of under-inflated tires on a four-wheel automobile. The mass density is given by: p(0) = 0.4, p(1) = p(2) = p(3) = 0.1, p(4) = 0.3 a) Find the expected value and the variance of this distribution. b)

    asked by Ray on April 15, 2018
  7. physics

    Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider by pressure alone, calculate the total area of the tires in contact with the ground. The bicycle plus rider has a mass of 80.0 kg, and the

    asked by Mohanad on April 6, 2014
  8. homework physics 3

    Air rushing over the wings of high-performance race cars generates unwanted horizontal air resistance but also causes a vertical downforce, which helps cars hug the track more securely. The coefficient of static friction between

    asked by Nerdy Nancy on February 8, 2011
  9. PHYSICS!!

    Air rushing over the wings of high-performance race cars generates unwanted horizontal air resistance but also causes a vertical downforce, which helps cars hug the track more securely. The coefficient of static friction between

    asked by Tiffany on February 7, 2011
  10. Physics

    Air rushing over the wings of high-performance race cars generates unwanted horizontal air resistance but also causes a vertical downforce, which helps the cars hug the track more securely. The coefficient of static friction

    asked by Steven on September 25, 2014

More Similar Questions