Mean and variance of a probability distribution

Assignment Help Mathematics
Reference no: EM13119562

Mean & Variance of a Probability distribution

A bank keeps tracks of customers coming into the bank between 12 Noon and1 PM on Monday. The probability distribution for customer arrivals can be represented by the following table:

X (number of customers) p(x), probability of x
0 0.1
1 0.15
2 0.18
3 0.2
4 0.2
5 0.1
6 0.07
Find the average and the standard deviation of the customers coming into the bank on a Monday between 12 Noon and 1 PM?

Reference no: EM13119562

Questions Cloud

Is dispersion of supplier a-s tire life is less than b : Supplier B's tires have an average life of 60,000 miles with a standard deviation of 2,000 miles. Which of the following statements is true?
Elucidate will he be able to stop in time : If it takes him 0.250 s to get the brakes on and he is 30.0 m from the intersection when he sees the light, elucidate will he be able to stop in time?
Systems of equations-word problems : The table below is based on surveys of double-income families and the percent of men and women in these families who said they had the greater responsibility for various areas of the housework.
Calculate the volume of c2h2 that is collected over water : Calculate the volume of C2H2 that is collected over water at 23 Celcius by reaction of 0.751 g of CaC2 if the total pressure of the gas is 740 torr. (The vapor pressure of water is 21.07 torr .)
Mean and variance of a probability distribution : Mean and Variance of a Probability distribution, A bank keeps tracks of customers coming into the bank between 12 Noon and1 PM on Monday.
Illustrate what is the time constant if the ball''s amplitude : A mass ball is attached to the spring and allowed to come to rest. It is then pulled down y and released. Illustrate what is the time constant if the ball's amplitude has decreased to y1 after oscillations?
Explain how fast was the car traveling when it went over : The police at the scene of the accident observed that the point of impact is 120 m from the base of the cliff. Explain how fast was the car traveling when it went over the cliff?
Find the mean and standard deviation for experiment : The random variable "x" is the number of times he wins in 20 attempts at the game. Find the mean and std dev. for this experiment.
Impact of a decrease in the price of memory chips : The impact of a decrease in the price of memory chips on the market for computers and impact of the government imposing a price ceiling on apartment rents

Reviews

Write a Review

Mathematics Questions & Answers

  The proportion of the population

The proportion of the population

  Check for symmetry

Check for symmetry with respect to the x and y-axis and the origin.

  Evaluate the standard deviation

Calculate the result from the given survey of voters - Evaluate the standard deviation from the range (i.e., use the range rule of thumb).

  Explain probability distribution function

Probability Distribution Function. Suppose that the number of pounds of grapes sold by the Smalltown Co-op grocery store in a day is equally likely to be anywhere between 0 and 100 pounds (fractional values are possible)

  Plot the regression model on a scatter plot

Plot the regression model on a scatter plot of BMI difference & COFFDIFF.

  Find the sample mean and sample standard deviation

find that the sample mean and sample standard deviation

  Find the probability of three machines

Find the probability that during any given day three machines will break down.

  A grab bag contains -probability

Probability. A grab bag contains 10 $1 prizes, 7 $5 prizes, and 5 $20 prizes. Three prizes are chosen at random. Find the following probabilities.

  Determine the least squares regression line

Determine the least squares regression line

  Calculate the probability of rolling dice

Calculate the probability of rolling dice and obtaining a 3 or a 5 consecutively three times?

  The length of the diagonal of a rectangular billboard

The length of the diagonal of a rectangular billboard.

  Create a joint probability table

Create a joint probability table

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd