Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. the length of time for an individual to wait at a

The length of time for an individual to wait at a lunch counter is a random...

70.2K

Verified Solution

Question

Basic Math

The length of time for an individual to wait at a lunch counteris a random variable whose density function is

f(x) = (1/4)e^(-x/4) for x > 0 and = 0 otherwise

a) Find the mean and the variance

b) Find the probability that the random variable is within threestandard deviations of the mean and compare Chebyshev'sTheorem.

Answer & Explanation Solved by verified expert
3.5 Ratings (445 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Question A [AR1: 5 Marks] Consider the projects described in the table below: End of Year Project A...

Finance
Q

Let {z0, z1, z2, . . . , z2017} be the solution set of the equation...

Advance Math
Q

D4 = {(1),(1, 2, 3, 4),(1, 3)(2, 4),(1, 4, 3, 2),(1, 2)(3, 4),(1, 4)(2, 3),(2, 4),(1,...

Advance Math
Q

One year ago, XYZ Co. issued 11-year bonds at par. The bonds have a coupon rate...

Finance
Q

Click anywhere to draw the first atom of your structure

Biology
Q

Observe the growth of bacterial colonies on these plates Which dilution factor plates would not...

Biology
Q

11 If a skyscraper has a height of 235 feet, could it be in the...

Basic Math
Q

Each course at college X is worth either 2 or 3 credits. The members of...

Basic Math
Q

Expand the binomial by using Pascal s Triangle to determine the coefficients 2v 3 6

Calculus
Q

The total factory overhead for Cypress Marine Company is budgeted for the year at $933,600,...

Accounting
Q

You have just received notification that you have won the $3.0 million first prize in...

Accounting
Q

For each of the following accounts, identify whether it would be closed at year-end (yes...

Accounting