What is the probability that the student answers

Assignment Help Basic Statistics
Reference no: EM132527735

A test consists of eleven true/false questions. A student who forgot to study guesses randomly on every question. What is the probability that the student answers at most nine questions correctly? Use combination and/or permutation formula: nCr/nPr.

Reference no: EM132527735

Questions Cloud

Estimate the percentage of amounts : In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $43.51 with standard deviation $2.75.
What is the probability that you will make money : What is the probability that you will make money on the first day and lose money on the second day, and make money on the third?
Value of the population mean : You are advised to first perform the appropriate hypothesis test using pencil and paper, along with a calculator and statistical tables, and then use your worki
What is the expected number of trees in the forest : Suppose that trees are distributed in a forest according to a two-dimensional Poisson process with parameter a, the expected number of trees per acre
What is the probability that the student answers : What is the probability that the student answers at most nine questions correctly? Use combination and/or permutation formula: nCr/nPr.
Elevators randomly services floor : A hotel has four elevators. One of them is a freight elevator. When pressing the button, one of the elevators randomly services your floor.
What is the probability that spinner lands on red exactly : What is the probability that spinner lands on red exactly two times? Use combination and/or permutation formula: nCr/nPr.
What is the probability that the sample average : The U.S. Bureau of Labor Statistics released hourly wage figures for various countries for workers in the manufacturing sector. The hourly wage
Sketch the relative frequency histogram : A) Sketch the relative frequency histogram for the distance data and describe its shape.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Write the four parts for a two sided hypothesis test

Write the four parts for a two-sided hypothesis test concerning the population mean with a = 0.002.- Suppose x‾ = 9.04 and σ = 1.20. Find the value of the test statistic, and draw a conclusion about the population mean.

  Manufacturers of high-end clocks

Machine Works is faced with the problem of extending credit to a new customer, Qualclocks, in connection with a contract for next year's season. Machine Works has three risk categories for credit - "poor'', "average" and "good" according to repaym..

  The viscosity of a material

From setup to monitoring. Suppose that when the chart setup project of Example 27.8 is complete, the points remaining after removing special causes have  = 48.7 and  = 0.92. What are the center line and control limits for the  and s charts you woul..

  How would you use blocking in the given study

A study of emerging markets was conducted on returns on equity, bonds, and preferred stock. Data are available on a random sample of firms that issue.

  Construct a stem-and-leaf display for the fne scores

Eating disorder study. Data from a psychology experiment were reported and analyzed in American Statistician (May 2001). Two samples of female students.

  Results of a research situation based on a matched sample

Assume you are working with the results of a research situation based on a matched sample design involving 25 participants

  Symmetrical-limits of population percentage

The probability is 90% that the sample percentage will be contained within what symmetrical limits of the population percentage?

  Probability-mean number of daily emergency in a range

In a simple random sample of 30 days, what is the probability that the mean number of daily emergency admissions is between 75 and 95?

  Construct a pivot table to compare custom with the location

Construct a pivot table to compare the Custom with the Location. Place Custom in the rows and Location in the columns and a count of houses in the body of the table.

  Process of statistical quality control

Analyze the process of statistical quality control and determine which part of the process would be most difficult and what steps could be taken to mitigate the anticipated difficulty.

  Does the service characteristic of intangibility change

Does the service characteristic of intangibility change once a service is placed on the web? Please explain. How can a service provider "tangibilize'

  What is the expected time for the first of bulbs to burn out

A company buys 100 lightbulbs, each of which has an exponential lifetime of 1000 hours. What is the expected time for the first of these bulbs to burn out?

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