The speeds of cars on a road are approximately normally distributed with a mean 58 km hr and standard deviation 4 km hr (a) What is the probability that a randomly selected car is going between 60 and 65 km hr (b) What fraction of all cars are going slower than 52 km hr ...

a The normal distribution of car speeds with 58 and 4 is shown in Figure 720 The proba ...

The speeds of cars on a road are approximately normally distributed with a mean = 58

Question:

The speeds of cars on a road are approximately normally distributed with a mean μ = 58 km/hr and standard deviation σ = 4 km/hr.
(a) What is the probability that a randomly selected car is going between 60 and 65 km/hr?
(b) What fraction of all cars are going slower than 52 km/hr?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Applied Calculus

ISBN: 9781119275565

6th Edition

Authors: Deborah Hughes Hallett, Patti Frazer Lock, Andrew M. Gleason, Daniel E. Flath, Sheldon P. Gordon, David O. Lomen, David Lovelock, William G. McCallum, Brad G. Osgood, Andrew Pasquale

See More Books

Question Posted: Apr 04, 2023 01:29 AM

See More Questions

The mean incubation time of fertilized chicken eggs kept at 100.5F in a still-air incubator is 21 days. Suppose that the incubation times are approximately normally distributed with a standard...
A car company claims that its only hybrid car has a highway gas mileage of 40 mpg on average. An independent company randomly selects one of the cars, which turns out to have a gas mileage of 38 mpg....
The annual ground coffee expenditures for households are approximately normally distributed with a mean of $42.75 and a standard deviation of $11.00. (a) Find the probability that a household spent...
Tri-State Railroad Company organizes its three divisions, the Southeast (SE), East (E), and South (S) regions, as profit centers. The chief executive officer (CEO) evaluates divisional performance,...
Management of an airline knows that 0.5% of the airline's passengers lose their luggage on domestic flights. Management also knows that the average value claimed for a lost piece of luggage on...
un Progress For Oriole Company, the predetermined overhead rate is 70% of direct labor cost. During the month, $800000 of factory labor costs are incurred of which $70000 is indirect labor. Actual...
Guessing a students letter grade (A, B, C, D, F) in a class
The following information, in T-account format, is provided for Mars Company for the year 2012: Additional information: a. Sales revenue for the period was $164,000. Accounts receivable (net)...
How did you precisely find End. Bal in Step 2/2
The distribution of IQ scores can be modeled by a normal distribution with mean 100 and standard deviation 15. (a) Write the formula for the density function of IQ scores. (b) Estimate the fraction...
Let p(t) = 0.1e 0.1t be the density function for the waiting time at a subway stop, with t in minutes, 0 t 60. (a) Graph p(t). Use the graph to estimate visually the median and the mean. (b)...
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 60 Americans is taken to further investigate viewing habits. Assume the population...
Use as many directional terms as possible to describe therelationshipbetween: a. the antecubital region and the poplitealregion b. the acromial region and the mentalregion c. the gluteal region and...
Average rate of return-cost savings Maui Fabricators Inc. is considering an investment in equipment that will replace direct labor. The equipment has a cost of $114,000 with a $10,000 residual value...
Alan was rated as excellent on his individual work performance evaluation, earning him $2,000, provided as a merit pay increase. His annual salary this year is $48,000. He works in a team of 3...
Josie spends $60 at the end of each month on cigarettes. If shestops smoking and invests the same amount in an investment planpaying 6% compounded monthly, how much will she have after fiveyears? 2...
Say we have a Boeing 747 whose longitudinal flight dynamics for a given flight condition may be approximated using the following state equation (uncontrolled motion; thus no need to consider the...
Which two communities of interest are usually associated with contingency planning? Which community must give authority to ensure broad support for the plans?
Coastal Refining Company operates a refinery with a distillation capacity of 12,000 barrels per day. As a new member of Coastal's management team, you have been given the task of developing a...
Differentiate. y = ln(3x + 1) ln(5x + 1)
Differentiate. y = In (x + 1) 4 (x + 2) / x-1
Find the slope of the tangent line to the curve y = xex at (1, e).
TestAnswerSavedHelp opens in a new windowSave & ExitSubmit Item 1 7 1 0 points Time Remaining 1 hour 2 0 minutes 1 8 seconds 0 1 : 2 0 : 1 8 Item 1 7 Time Remaining 1 hour 2 0 minutes 1 8 seconds 0 1...
Use the following information for the Problems below. (Algo) [The following information applies to the questions displayed below.] Lansing Company's current-year income statement and selected balance...
In the context of portfolio theory, what is diversification primarily intended to do ? A ) Increase returns. B ) Reduce risk. C ) Maximize tax efficiency. D ) Simplify investment management.

The speeds of cars on a road are approximately normally distributed with a mean = 58

Question:

Step by Step Answer:

a The normal distribution of car speeds with 58 and 4 is shown in Figure 720 The proba...View the full answer

Applied Calculus

Students also viewed these Mathematics questions