The correlation coefficient r between two variables x and y

Assignment Help Basic Statistics
Reference no: EM13642203

The correlation coefficient (r) between two variables X and Y is -0.9. How much of the variation in the variable Y is explained by the variable X?

a. 90%

b. 81%

c. -0.81%

d. 0.9%

e. -81%

Reference no: EM13642203

Questions Cloud

Derive the relation between the critical constants and the : derive the relation between the critical constants and the dieterici equation parameters. show that zc 2e-2 and derive
Blocks with masses of 11 kg 203 kg and 292 kg are lined up : blocks with masses of 1.1 kg 2.03 kg and 2.92 kg are lined up in a row on a frictionless table. all three are pushed
Vaillin used to flavor vanilla ice cream and other foods is : vaillin used to flavor vanilla ice cream and other foods is the substance whose aroma the human nose detects in the
A 187-m-long 552 g rope pulls a 44 kg block of ice across : a 1.87-m-long 552 g rope pulls a 4.4 kg block of ice across a horizontal frictionless surface. the block accelerates at
The correlation coefficient r between two variables x and y : the correlation coefficient r between two variables x and y is -0.9. how much of the variation in the variable y is
The probability that a plant produces two or more seeds is : the probability that a plant produces two or more seeds is .20. a sample of five plants is observed. what is the
A 28000 kg rocket has a rocket motor that generates 309200 : a 28000 kg rocket has a rocket motor that generates 309200 n of thrust.what is the rockets initial upward
At least 31 can taste the difference between the two oils : in response to concerns about nutritional contents of fast foods mcdonalds has announced that it will use a new cooking
It is only through the study of isolated and purified : it is only through the study of isolated and purified elements and their combination that one can observe

Reviews

Write a Review

Basic Statistics Questions & Answers

  Blow are the lifetimes in hours of fifty 40-watt 110-volt

below are the lifetimes in hours of fifty 40-watt 110-volt internally frosted incandescent lamps taken from forced

  Which statement is true about the scope of systematic

which statement is true about the scope of systematic reviews srs?a. srs should be as broad as possibleb. srs should be

  A random sample of 100 credit sales in a department store

a random sample of 100 credit sales in a department store showed an average sale of 120.00. from past data it is known

  He selects one of the coins at random and when he flips it

a gambler has a fair coin with one head and one tail and a two-headed coin. he selects one of the coins at random and

  A local environmental organization is interested

a local environmental organization is interested determining if the proportion of red cars in a city has increased from

  How statistical application of pearson-used for hypothesis

Discuss how the statistical application of Pearson r is used for hypothesis testing. Through application of the Spearman Correlation discuss what type of data the Pearson formula can be used for.

  Why the method for z used in the following questions

The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.50 inches.

  Estimate confidence average cost of a visit for patients

The standard deviation for the costs of all doctors visits is $35.15, estimate with 95% confidence the average cost of a doctors visit for all the patients of this medical clinic.

  Finding expected shape of distribution of sample mean

Find out the expected shape of distribution of sample mean?

  Calculate the mean of the sampling distribution

What is the probability of accepting a shipment containing 25% defectives and calculate the mean of the sampling distribution.

  Given a pair of fair dice each face is equally likely to

given a pair of fair dice each face is equally likely to show upward.what is the expectation of this random variable

  Performance in the high jump

Below is a plot of the Olympic gold medal winning performance in the high jump (in inches) for the years 1900 to 1996.

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