Calculate the mean, variance, and standard deviation

Assignment Help Mathematics

Reference no: EM1321976

Question1:3 tables listed below show "random variables" and their "probabilities." However, only one of these is actually a probability distribution.

[A]Which is it?

A		B		C
X	P(x)	X	P(x)	X	P(x)
5	0.1	5	0.1	5	0.1
10	0.1	10	0.1	10	0.1
15	0.2	15	0.2	15	0.1
20	0.6	20	0.7	20	1

[B] Using the correct probability distribution, find the following probabilities:
P(x is exactly 15) = _____
P(x is no more than 10) = _____
P(x is more than 5) = _____
[C] Calculate the mean, variance, and standard deviation of this distribution. (Give your answers to two decimal places.)
Mean µ= _____
Variance σ²= _____
Standard deviation σ = _____

Question2: In a Poisson distribution µ = 0.3 (Round your answers to 4 decimal places.)
[A] What is the probability that X = 3
[B] What is the probability that X > 3

Reference no: EM1321976

Questions Cloud

Program simulating the rolling of one dice : Write down a program which simulates rolling one dice utilizing the following steps: Prompt user for the number of sides on the dice.

Describe ramifications of sarbanes-oxley act : Explain the ramifications of Sarbanes-Oxley act in short run. Provide specific examples to support your response.

Variable cost-fixed cost and mixed cost : Distinguish between a variable cost, a fixed cost, and a mixed cost. Identify a publicly traded, well-known company, and identify what you envision would be a variable cost, a fixed cost, and a mixed cost for this company.

Using the p-value approach-test the hypotheses : Using the p-value approach, test the hypotheses at the 1% level of significance.

Calculate the mean, variance, and standard deviation : Calculate the mean, variance, and standard deviation of this distribution.

Case study on carolcon metals : Carolcon Metals in Minnesota is in trouble. For the past 5 years, they have been losing ground to the competition in an especially fierce industry. All competitors have moved mining and production facilities to countries with lower wages and fewer..

Finding most effective it projects : What will you recommend they do in order to find the most effective IT projects?

Standard error of the difference between the means : What is the standard error of the difference between the means?

Resolving the ambiguities in the software : Describe what you must do in such a situation. You know that cost to your current employer will increase in case the ambiguities are not resolved. Though, you have also a responsibility of confidentiality to your previous employer.

User Account

All Pages