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

User Account

All Pages