Probability that both students read less per minute

Assignment Help Basic Statistics
Reference no: EM13136012

Students who have completed a speed reading course have reading speeds that are normally distributed with a mean of 950 words per minute and a standard deviation equal to 220 words per minute. if two students were selected at random, what is the probability that they would both read at less than 400 words per minute?

Reference no: EM13136012

Questions Cloud

Federal budget in deficit : What are the advantages and disadvantages of preventing the federal budget from ever being in deficit? Discuss only public finance aspects of the deficit rather than macroeconomic issues.
Calculate the mass of the water : A container of water is heated from 23.5C to 85.0C. This process requires 21,900 Joules of heat. Calculate the mass of the water. (c=4.184 J/g-C)
Characteristic of absorption costing : What characteristic of absorption costing caused the drop in net operating income for the second quarter and what could the controller have said to explain the problem?
Comprehensive wealth tax : Is the incidence of a comprehensive wealth tax likely to be progressive? Is the property tax, as used in the United States, a comprehensive wealth tax?
Probability that both students read less per minute : If two students were selected at random, what is the probability that they would both read at less than 400 words per minute?
Policy analysis-theorists and processes : Explain the development of policy analysis. In particular, explore how various scholars (e.g., Aaron Wildavsky; Bobrow Davis and John Dryzek; Kraft Michael and Scott Furlong; Deborha Stone; and Paul Sabatier) conceptualize policy analysis to impro..
Writing assignment: obituary : Writing Assignment: Obituary
Amount of gain or loss on redemption : Bonds payable has a balance of $1,000,000 and premium balance of $7,000. IF the issuing corporation redeems the bonds at 101. what is the amount of gain or loss on redemption?
How many photons strike the leaf every second : If solar radiation is 1200  W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504  nm for solar radiation.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Safety of drinking water

Discuss an element of drinking water where you see a public health gap or need that should be addressed. You may bring up a specific case relevant to your community if you have one, or bring up a global issue.

  Determining sample size requirements

Determine sample size requirements. When the results are available you would like your margin of error to be plus or minus 5% for the satisfaction measure and plus or minus $1.50 for the spending value.

  What proportion of chocolate bars weighs less

Chocolate bars produced by a certain machine are labeled with 8 oz. The distribution of the actual weights of these chocolate bars is Normal with a mean of 8.1 oz and a standard deviation of 0.1 oz. What proportion of chocolate bars weighs less th..

  Population mean is less than a specified value

To test whether the population mean is less than a specified value.

  Estimating the cost of unit

The first unit required 9800 hours to manufacture. The company expects to experience an 82% unit learning curve. Estimate the cost of the 20th unit. (Round intermediate calculations to 4 decimal places)

  Question on statistical concepts

What is dispersion? Briefly name five measures of dispersion. Describe the characteristics of the standard deviation. Explain

  Find the critical value to test the claim

Find the critical value to test the claim that all ages have purchase rates proportional to their driving rates.

  Confidence interval for proportion of all kernels not pop

Construct a 90 percent confidence interval for the proportion of all kernels that would not pop. (b) Check the normality assumption. (c) Try the Very Quick Rule.

  Confidence interval estimate for fraction of current student

Discovering that 12 will return to summer school. Construct a 90% confidence interval estimate for the fraction of current spring students who will return to summer school.

  Estimate the total value of the inventory

Suppose there was 2,500 cards in the inventory and how would the results be useful to the owner to estimate the total value of the inventory. What equation is best?

  Steps of hypothesis testing-score of sample distribution

Using the .01 level, what should the researcher conclude? Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution, the cutoff (or cutoffs), and the scor..

  Determine the empirical probability

Use this information to determine the empirical probability that the next bird to visit the feeding station will be a dove.

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