Drawing histogram and calculate mean-variance

Assignment Help Basic Statistics
Reference no: EM13104029

The random variable X has PDF f(x) = 2xe-x^2 , where x > 0.

a) Draw a random sample of size 1000 from this distribution.

b) Draw a histogram of the 1000 sampled values and obtain the sample mean and SD.

c) Using the sample obtained, draw a histogram and calculate mean and variance for 1000 sampled values for random variable Y = X2.

Reference no: EM13104029

Questions Cloud

Draw a position graph that could represent this motion : a dog is walking slowly toward a motion detector. Draw a position graph that could represent this motion. Show your work.
Case study - materials manager at b&l : Brian XXXXXX, materials manager at B&L Inc. in Lancaster, Pennsylvania, was considering a proposal from his purchasing agent to outsource manufacturing for an outrigger bracket.
What potential difference between the plates : A small sphere with mass 2.60g hangs by a thread between two large parallel vertical plates 5.00cm apart. The plates are insulating and have uniform surface charge densities and . The charge on the sphere is = 8.70×10?6C . What potential differenc..
Analyze effect of legal-safety and regulatory requirements : Create the 700- to 1,050-word paper analyzing effect of legal, safety, and regulatory requirements on human resource process as they relate to following statement.
Drawing histogram and calculate mean-variance : Using the sample obtained, draw a histogram and calculate mean and variance for 1000 sampled values for random variable Y = X2.
How far will the electron travel before coming to a stop : An electron is observed traveling at a speed of 25.7·106 m/s parallel to an electric field of magnitude 14000 N/C. How far will the electron travel before coming to a stop?
Estimate the maximized profit : Riverside oil company in eastern Kentucky produces 3 different grades of gasoline. They are regular, premium, and supreme grades. Each barrel of regular grade sells for $82 while premium grade sells for $88 per barrel and supreme grade sells for $89 ..
Sketch the positions of the student and of superman : Determined to test the law of gravity for himself, a student walks off a skyscraper 180 m high, stopwatch in hand, and starts his free fall (zero initial velocity).
What is the resistance of a 100 w fluorescent bulb : Compact fluorescent bulbs are much more efficient at producing light than are ordinary incandescent bulbs. They initially cost much more, but last far longer and use much less electricity.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Extreme value on the confidence interval

Using the results, describe the effect of an outlier or extreme value on the confidence interval.

  Explaining two tail t-test

For which of given variables must a "two tail" t-test be applied?

  Difference in interest rates paid by two states

A bond analyst is analyzing interest rates for corresponding municipal bonds issued by two different states.  At  α = .05, is there a difference in interest rates paid by two states?

  Calculate the residual

Question: If the regression line is drawn as Y = C + 1075x, when X was 2 and y was 239, given that the intercept was 11. Calculate the residual

  Evidences to reject the claim

A random sample of 24 groups of adults has a mean daily lodging cost of $233 and a standard deviation of $12.50. Is there enough evidence to reject the claim at α= 0.10? Assume the population is normally distributed.

  Probability of marble selection

Suppose that you have a bag filled with 50 marbles, 15 of which are green. What is the probability of choosing exactly 3 green marbles if a total of 10 marbles are selected?

  Hypothesis test for two population means test

Test the hypothesis that there is no difference in the mean scores of Exam 1 and Exam 2 against the alternative that the average is  greater  for the second exam.

  Analysis of grantie specimen

A geologist has collected 10 specimens of basaltic rock and 10 specimens of granite. The geologist instructs a laboratory assistant to randomly select 15 of the specimens for analysis.

  Expected number of changeovers

If you have n independent flips of a coin with probability p of landing heads. And a changeover occurs whenever an outcome differs from the one preceding it.

  Point estimate and confidence interval estimate

Make a point estimate and a 95% confidence interval estimate.

  Applied business statistics test

The following data represent scores of 50 students in the applied business statistics test. Prepare the frequency distribution table and the frequency histogram for this data set.

  Mean return for a random sample

Construct a 95% confidence interval for the population mean.

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