Probability student selected at random is older than other

Assignment Help Basic Statistics
Reference no: EM13151548

The average age of statistics students nationwide is 22. The standard deviation is 2.5 years. Assume the age is a normally distributed variable.Find the probability that one student selected at random is older than 23.

Reference no: EM13151548

Questions Cloud

Increase in the total stockholders equity : the common stock had a market value of $xx per share (the shares were originally issued at $xx per share). As a result of this exchange, Abel's total stockholders' equity will increase by ??
Increase the required reserve ratio : Increase the required reserve ratio Decrease the required reserve ratio Increase the discount rate Decrease the discount rate Buy government securities in the open market Sell government securities in the open market
Probability-particular wrestler will weigh less in pounds : The weight of wrestlers is normally distributed with a mean of 300 pounds and a standard deviation of 40 pounds. What is the probability that a particular wrestler will weigh less than 250 pounds?
What is the probability that she will have a normal child : Genes for color blindness and hemophilia are linked on the X-chromosome in humans with a recombination frequency of 30 %. A woman whose father was a color blind hemophiliac.
Probability student selected at random is older than other : The average age of statistics students nationwide is 22. The standard deviation is 2.5 years. Assume the age is a normally distributed variable. Find the probability that one student selected at random is older than 23.
Tax implications for income earned and losses : Identify the basic forms of conducting business, and distinguish and explain the tax implications for income earned and losses incurred by a sold proprietor, partnership, and corporation.
Transaction on net operating income : XYZ Company accepted a national credit card for a $3,000 purchase. The cost of the goods sold is $2,400. The credit card company charges a 3% fee. What is the impact of this transaction on net operating income?
Explain why the short-run aggregate supply curve : Explain why the short-run aggregate supply curve is not vertical, but the long-run aggregate supply curve is vertical.
The manufacturer would then sell the returned cars : In the late 1990's, care leasing was very popular in the United States. A customer would lease a car from the manufacturer for a set term, usually two years, and then have the option of keeping the care. If the customer decided to keep the car, the c..

Reviews

Write a Review

Basic Statistics Questions & Answers

  General population of adults in united states

Dr. Bundy recently earned permission from the warden of a local prison to use prisoners to study the effects of the drug Zoloft on depression.

  Information about monte carlo simulation

Suppose we have a ""black box" which on command can generate the value of a gamma random variable with parameters 1.5 and 1. Explain how we can use this black box to approximate

  Null and alternative hypotheses for a decision

Share with your peers the null and alternative hypotheses for a decision that is relevant to your life. This can be a personal item or something at work.

  Find probability that simple random sample give mean

What is the probability that a simple random sample of 40 male graduates will provide a sample mean within $10,000 of the population mean, $168,000 (to 4 decimals)?

  Dms odor thresholds

Here are the DMS odor thresholds for 10 untrained students:

  Brakes for a model of automobile

Brakes for a model of automobile fail with a Poisson distribution at an annual rate of 4.4/yr. What is the probability that

  Calculate the chi-square statistic

Calculate the chi-square statistic χ2 to determine if there is enough evidence to conclude that the number of minutes spent online per day is related to gender.

  What is the probability that mary''s name will be selected

The City Transit Authority plans to hire 8 new bus drivers. From the group of 100 qualified applicants, of whom 55 are men and 45 are women, 8 names are to be selected by lot. Suppose that Mary and John Lewis are among the 100 qualified applicants..

  Compute the sample correlation coefficient by hand

Calculate the sample correlation coefficient by hand. By use of a spreadsheet calculate the sample correlation coefficient.

  Statistics-testing magnets for treating pain

A study was conducted to determine whether magnets were effective in treating pain. The valves represent pain measurements.

  Find minimum sample size required to estimate population

Use the given date to find the minimum sample size required to estimate a population proportion and populat mean. Margin of error: 0.004, confidence level, 90%, sample proportion (p) : = 0.45

  Dewtermine the cost to fill the tank

The gas price index for 1985 was 218.5 and the gas price index for 2000 was 276.8. If it cost $18.13 to fill your gas tank in 1985, how much would it have cost to fill the same tank in 2000?

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