Find the mean of x-find the standard deviation of x

Assignment Help Basic Statistics
Reference no: EM13983714

Suppose we generate a random variable X in the following way. First we ?ip a fair coin. If the coin is heads, take X to have a Unif(0,1) distribution. If the coin is tails, take X to have a Unif(3,4) distribution.

(a) Find the mean of X.

(b) Find the standard deviation of X.

Reference no: EM13983714

Questions Cloud

Standard antibiotic to treat an infection : 100 people are given a standard antibiotic to treat an infection and another 100 are given a new antibiotic. In the ?rst group, 90 people recover; in the second group, 85 people recover.
Times between eruptions of the old faithful geyser : Get the data on eruption times and waiting times between eruptions of the Old Faithful geyser from the website. Estimate the mean waiting time and give a standard error for the estimate. Also, give a 90 percent con?dence interval for the mean wai..
Problem regarding the exponential distribution with mean : Let Z1, Z2,... be iid random variables with density f . Suppose that P(Zi > 0) = 1 and that λ = limx↓0 f (x) > 0. Let Xn = n min{Z1,..., Zn}. Show that Xn """ Z where Z has an exponential distribution with mean 1/λ.
Administrator of the contoso corporation : You are administrator of the Contoso Corporation. You installed a cluster of computers that need to use the same service account for the Widget application/services. What solution would you use?
Find the mean of x-find the standard deviation of x : Suppose we generate a random variable X in the following way. First we ?ip a fair coin. If the coin is heads, take X to have a Unif(0,1) distribution. If the coin is tails, take X to have a Unif(3,4) distribution.
The set of data for culpeper : The data will be given to you in a file that is in a comma separated format. We will be using the commas to determine where each piece of the input starts and begins. Samples of the data will be given below. After you read in all the data for a stati..
Origin of the real line and moves : A particle starts at the origin of the real line and moves along the line in jumps of one unit. For each jump the probability is p that the particle will jump one unit to the left and the probability is 1-p that the particle will jump one unit to th..
Define the bases for competition in the market : Based on the perceptual map, define the bases for competition in the market. Are there any strategic groups - how well-positioned is Emergent with its proposed attribute levels?
Discuss theimportance of the future : Read the article by Wagner titled "Top 10 Disappearing Futures" located in the ABI/Inform database of the CSU OnlineLibrary. Choose one of the disappearing futures and write a paper at least two pages in length discussing it. Discuss theimportance of..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Calculate the difference in the average clutter

Calculate the difference in the average clutter between network and cable television and which standard deviation would lead you to conclude that there was a major difference in the two clutter averages? Comment.

  Peas are generated from parents having the greenyellow pair

peas are generated from parents having the greenyellow pair of genes so there is a .75 probability that an individual

  Probability values using normal distribution

Computing the probability values using normal distribution - Evaluate the percentage of homes that generate between 27 and 31 pounds of recycling per month.

  A random sample of 100 observations from a quantitative

a random sample of 100 observations from a quantitative population produced a sample mean of 26.8 and a sample standard

  Research question in the field of education

Provide a plausible research question in the field of education that implies a bivariate correlation or regression. Identify your research question, your research (alternative) hypothesis, and your null hypothesis.

  A researcher uses a repeated-measures design to compare

a researcher uses a repeated-measures design to compare individuals performance before treatment with their performance

  A company that manufactures video cameras produces a basic

a company that manufactures video cameras produces a basic model and a deluxe model. over the past year 30 of the

  Confidence level for true mean of available hotel rooms

Identify the point estimate of the average number of available hotel rooms in this lesson from each sample. Construct and Interpret a 95% confidence level for the true mean number of available hotel rooms, based on the point estimate of each sampl..

  What values of p is engine plane preferable to two-engine

The airplane will make a successful flight if at least 50 percent of its engines remain operative. For what values of p is a 4-engine plane preferable to a 2-engine plane?

  What is the probability that the worker is a union member

If the selected worker found a job with a new company in the same field, what is the probability that the worker is a union member?

  Describing statistical statements

Identify the population and the sample: A survey of 787 small-business managers found that 72% are optimistic about the future of their company.

  Generate a 95 ci for the difference in proportions of

a clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. two

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