Variance of a data set

Assignment Help Mathematics
Reference no: EM131102908

True or False. Justify for full credit.

(a) If the variance of a data set is zero, then all the observations in this data set are zero.(b) If P(A) = 0.4 , P

(B) = 0.5, and A and B are disjoint, then P(A AND B) = 0.9.

(c) A 95% confidence interval is wider than a 90% confidence interval of thesame parameter.

Reference no: EM131102908

Questions Cloud

Clarify impact theory of consumer choice has on demand curve : Analysis the impact the theory of consumer choice has on: Demand curves, Higher wages and Higher interest rates.
Find the tap coefficients for a three-tap zero equation : Find the output samples for mT = -2T; -T; 0; T; and 2T.
Describes the advantages and disadvantages for each job : Describes the advantages and disadvantages for each job listed in the scenario and identifies which job the student would choose from the scenario and explains why.
How many levels does each of the factors have : A certain drug known to affect coordination can be administered in three ways: orally, by injection under the skin, or by injection into a vein. How many levels does each of the factors have
Variance of a data set : (a) If the variance of a data set is zero, then all the observations in this data set are zero.(b) If P(A) = 0.4 , P (B) = 0.5, and A and B are disjoint, then P(A AND B) = 0.9.
Analyze the ways in which government and religion interact : Discuss the significance of religion and government on other characteristics of the country's culture such as in literature, music, and art. Please provide two specific examples.
Graph of the exponential function : What is an exponential function? What is different about the graph of the exponential function versus the graph of a linear function?
Find the pulse shape function corresponding to this spectrum : Show by a suitable sketch that the triangular spectrum of Figure 4.8(a) satisfies Nyquist's pulse shaping criterion.
What will continue to happen in the banking system : If reserves in the banking system increase by $3 billion as a result of discount loans of $3 billion, why isn't the banking system in equilibrium? What will continue to happen in the banking system until equilibrium is reached?

Reviews

Write a Review

Mathematics Questions & Answers

  How much the gross domestic product increased

Estimate how much the gross domestic product increased from 2014 to 2015.

  Describe your process for factoring it completely

describe your process for factoring it completely. Be sure to use three or more sentences in your explanation. If the polynomial can be factored, then factor it showing your work.

  What is the tension t in the cable

An audio speaker that weighs 50 pounds hangs from the center of a 6 foot cable the ends of which are fastened to the ceiling of a restaurant. At equilibrium the minimum point of the stretched cable is 0.5 ft below the ceiling. To two decimal place..

  What is the probability that in a sample of 20 window frames

A manufacturer of window frames know from long experience that 5 percent of the production will have some type of minor defect tht will require an adjustment. What is the probability that in a sample of 20 window frames

  Conduct qualitative market research data

1. What circumstances might you need to conduct qualitative market research data on behalf of your organisation or an organisation for which you consult? 2. Why would you choose to conduct qualitative rather than quantitative research?

  Slope of a line-building parks in city

The number of parks, y, being built in a city over a period of time, x, is graphed on a rectangular coordinate system. Write a paragraph describing your interpretation when the slope is positive

  What annual percent interest rate

Kendra pawned her guitar for $100. Her guitar was valued at $150. If Kendra paid the pawnbroker $150. to get her guitar back after one month, what annual percent interest rate did she end up paying?

  Frankie and johnny are going to play tennis

Frankie and Johnny are going to play tennis.

  How many pencils were in each box

there were 244 pencils altogether. sean put them into 3 boxes. there were 70% more pencils in box A than in box B. there were twice as many pencils in box C than in box A. how many pencils were in each box?

  Find volume of solid if every cross section is perpendicular

A solid has a circular region in the xy- plane bounded by the graph of x2 + y2 = a2 with a > 0. Find the volume of a solid if every cross section is perpendicular to the x-axis is an equilateral triangle with one side in the base.

  What will be the dimensions of the patio

A patio is to be built in the shape of a rectangle. The length is to be 5 feet shorter than 3 times the width. The perimeter of the patio is 190 feet. What will be the dimensions of the patio?

  Solve the equation

Write an equation that can be used to determine the total weight of all the newspapers Sam has bundled.

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