In a large section of a statistics class the points for the

Assignment Help Basic Statistics
Reference no: EM13619271

In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: the top 10 % receive A's, the next 20 % receive B's, the middle 40% C's, the next 20% received D's, and the bottom 10% receive F's. Find the lowest score on the final exam that would qualify a student for an A, a B, a C, and a D.

Reference no: EM13619271

Questions Cloud

If stock a had a price of 120 at the beginning of the year : if stock a had a price of 120 at the beginning of the year 150 at the end of the year and paid a 6 dividend during the
An investment project requires a net investment of 100000 : an investment project requires a net investment of 100000. the project is expected to generate annual net cash flows of
You are offered an investment that will make you three : you are offered an investment that will make you three payments of 5000 each. these payments would occur from now at
Morningside nursing homea not-for profit corporationis : morningside nursing homea not-for profit corporationis estimating its corporate cost of capital.its tax-exempt debt
In a large section of a statistics class the points for the : in a large section of a statistics class the points for the final exam are normally distributed with a mean of 72 and a
Random variable x denotes the number of daughters in a : random variable x denotes the number of daughters in a family of 2 children. the probability of having one daughter is
Find the values of t that bound the middle 08 of the : find the values of t that bound the middle 0.8 of the distribution for df 25. give your answers correct to two decimal
The number of taxicabs waiting outside a popular downtown : the number of taxicabs waiting outside a popular downtown bar can be modeled as a poisson random variable. the
Cookie sales at a bakery follow a normal distribution with : cookie sales at a bakery follow a normal distribution with expected value of 10000 cookies. on 90 percent of days the

Reviews

Write a Review

Basic Statistics Questions & Answers

  The probability density function f(x) represents

The function that defines the probability distribution of a continuous random variable is a?For a continuous random variable x, the probability density function f(x) represents.

  Problem of bayes analysis

Assume that a patient is believed to have one of two diseases, denoted by D1 and D2 with P(D1)=0.40 and P(D2)=0.60 and that medical research has determined the probability associated with each symptom that may accompany the diseases.

  Explain there is no relationship between income and time

Clearly a straight line model does not accurately describe what is going on with this data. Does this mean there is no relationship between income and time?

  What proportion of connectors fail during warranty period

The probability of a failure during the warranty period is 5%.if 90% of the connector are kept dry and 10% are wet, What proportion of connectors fail during the warranty period?

  The florida fruit supply company uses bottles that are

the florida fruit supply company uses bottles that are labeled as containing 23 oz of orange juice. a random sample of

  Contingency table test

What contingency table test is used to see if there is a difference in the frequency distribution for two different groups?

  If the random variable z is the standard normal score and

if the random variable z is the standard normal score and a gt 0 is it true that pz lt -a pz gt a? why or why not?

  A set of observations follow a normal distribution with

a set of observations follow a normal distribution with mean 40 and standard deviation 4. what proportions of

  Describe the concept of correlation

In your own words, describe the concept of correlation, include the coefficient of correlation (r) and the coefficient of determination (r2) in your description.

  Probability of basketball free throws

A basketball player makes 80% of his free throws. If he attempts eight free throws during the next game, what is the probability that he will make more than his average?

  A box of 10 gloves contains three left-handed gloves and

a box of 10 gloves contains three left-handed gloves and seven right-handed gloves. complete parts a through d.a. if

  For this population find the probability that a randomly

a study found that foot lengths for japanese women are normally distributed with a mean of 24.9 and a standard

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