Question

on average 3.5 shoplifting incidents occur per week at an electronic store.Find the following probabilities. a)...

on average 3.5 shoplifting incidents occur per week at an electronic store.Find the following probabilities.
a) At least two incidents will occur during a given week.
b) What are the mean and standard deviation of the distribution?
c) At most two incidents will occur during a given day.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. A study was done of the number of cardiac arrests to occur per week in...
1. A study was done of the number of cardiac arrests to occur per week in a particular hospital of 850 beds over a period of 5 years. The number of cardiac arrests fulfills the requirements for the Poisson probability distribution and has a mean of μ=1.09 cardiac arrests per week. Calculate the following probabilities: The probability of two cardiac arrests in a given week The probability of fewer than two cardiac arrests in a week The probability of at...
The Denver Post reported that, on average, a large shopping center had an incident of shoplifting...
The Denver Post reported that, on average, a large shopping center had an incident of shoplifting caught by security 1.4 times every three hours. The shopping center is open from 10 A.M. to 9 P.M. (11 hours). Let r be the number of shoplifting incidents caught by security in an 11-hour period during which the center is open. (a) Explain why the Poisson probability distribution would be a good choice for the random variable r. -Frequency of shoplifting is a...
4. Deaths in a small city occur at a rate of 5 per week and are...
4. Deaths in a small city occur at a rate of 5 per week and are known to follow a Poisson distribution. a. What is the expected number of deaths in a 3-day period? b. What is the probability no one dies in a 3-day period? c. What is the probability that at least 250 people die in 52 weeks? d. What is the probability that number of deaths in a 3-day period is less than µ + σ?
The average mass of newborn infants born at a given hospital is 3.5 kg with standard...
The average mass of newborn infants born at a given hospital is 3.5 kg with standard deviation of 575 g. Assume these birth weights follow a normal distribution. (a) What is the probability that a newborn selected randomly from this population has a mass of at least 4.64 kg? (b) What is the probability that a newborn selected randomly from this population has a mass between 3.3 kg and 3.6 kg? (c) If 100 infants are born in one day...
An airline knows from experience that the number of suitcases lost each week is normally distributed...
An airline knows from experience that the number of suitcases lost each week is normally distributed with a mean of 21.4 and a standard deviation of 4.5. Assuming a Poisson distribution, what are the probabilities that in any given week they will lose: a) exactly 25 suitcases? b) at most 25 suitcases? If this is a normal distribution, what are the probabilities that in any given week they will lose: c) exactly 25 suitcases? d) at most 25 suitcases?
In a factory, the average number of chairs manufactured per day is 60, and the standard...
In a factory, the average number of chairs manufactured per day is 60, and the standard deviation is 5. If a day is selected at random, find these probabilities. SHow your work: a. at least 68 chairs will be manufactured. b. at most 57 chairs will be manufactured. c. between 54 and 73 chairs will be manufactured.
Let X be the lifetime of an electronic device. It is known that the average lifetime...
Let X be the lifetime of an electronic device. It is known that the average lifetime of the device is 767 days and the standard deviation is 121 days. Let x¯ be the sample mean of the lifetimes of 157 devices. The distribution of X is unknown, however, the distribution of x¯ should be approximately normal according to the Central Limit Theorem. Calculate the following probabilities using the normal approximation. (a) P(x¯≤754)= Answer (b) P(x¯≥784)= Answer (c) P(749≤x¯≤784)= Answer
1. Given a poisson random variable, X = # of events that occur, where the average...
1. Given a poisson random variable, X = # of events that occur, where the average number of events in the sample unit (μ) is given on the right, determine the smallest critical value (critical value = c) for the random variable such that you have at least a 99% probability of finding c or fewer events.    μ = 4    2. Given a binomial random variable X where X = # of operations in a local hospital that...
17. The average cost of providing a particular service per person per day is a random...
17. The average cost of providing a particular service per person per day is a random variable having a normal distribution with average of N$100 and a standard deviation of N$22. This is an illustration a Select one: A. Discrete Probability Distribution B. Continuous Probability Distribution 18. If you use the information provided in Question 3.1 to calculate the probability that the cost of providing the service will be at least N$120 per day per person., then :- Select one:...
A population is normally distributed with mean 36.8 and standard deviation 3.5. Find the following probabilities....
A population is normally distributed with mean 36.8 and standard deviation 3.5. Find the following probabilities. (Round your answers to four decimal places.) (a)    p(36.8 < x < 40.3) (b)    p(33.2 < x < 38.7) (c)    p(x < 40.0) (d)    p(32.3 < x < 41.3) (e)    p(x = 37.9) (f)    p(x > 37.9)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT