Random variable that represents a test score

Assignment Help Basic Statistics
Reference no: EM1389689

In a recent year, 11th grade New York public school students taking an English test produced test scores that were normally distributed with a mean of 81 and a standard deviation of 6. Let x be a random variable that represents a test score. What is the lowest score that would still place a student in the top 40% of the scores?

A. 79.47

B. 80.25

C. 81.48

D. 82.52

Reference no: EM1389689

Questions Cloud

Specific mwr program : As a result of these actions, explain the "who, what, when, where and why" of how you would add new life into a specific MWR program to increase and continue its success?
City enjoy shopping online : A survey found that 85% of women in a given city enjoy shopping online. Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
The number of no-shows is normally distributed : The number of no-shows is normally distributed with a mean of 50 and standard deviation of 15. If a customer with booking cannot be given a room, NLI reimburses them with cash equal
Dna mutation in a gene : Determine what kind of DNA mutation in a gene would result in the production of a shorter version of a protein missing amino acids in the middle of the protein
Random variable that represents a test score : In a recent year, 11th grade New York public school students taking an English test produced test scores that were normally distributed with a mean of 81 and a standard deviation of 6. Let x be a random variable that represents a test score.
Construct a c-chart for test errors and set the control : Construct a c-chart for test errors, and set the control limits to contain 99.73% of the random variation in test scores
Create a homosporous and heterosporous life cycle of a plant : For seedless vascular plants create a homosporous and heterosporous life cycle of a plant. Also label what structures are haploid and which are diploid as well as when meiosis and fertilization occur.
Judge whether marketing occurred in this situation : Judge whether marketing occurred in this situation and justify your conclusions. Appraise the effectiveness of government regulation in controlling markets.
Topic in relation to bishops literature : Write about any topic in relation to Bishop's literature. Pursue something you are curious about - little secondary source criticism; or, it could be a little primary Bishop with a lot of secondary source integration.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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