Find percentage of observations fall in intervals

Assignment Help Basic Statistics
Reference no: EM13131472

A sample of 3000 observations has a mean of 82 and a standard deviation of 16. Using the empirical rule, find what percentage of the observations fall in the intervals , and x+/- 1s, x+/- 2s x+/- 3s.

Reference no: EM13131472

Questions Cloud

How much co2 will dissolve : At a pressure of 1.00 atm and a temperature of 20ºC, 1.72 g CO2 will dissolve in 1 L of water. How much CO2 will dissolve if the pressure is raised to 1.35 atm and the temperature stays the same?
How much did this subscription originally cost : This is the remaining balance of a twelve-month subscription purchased on September 30 in the current year. How much did this subscription originally cost?
What is the sketched formula for ethyl methyl ester : Is 1-propanol soluble in hexane? Why or why not? What is the sketched formula for ethyl methyl ester and is it an isomer of butanoic acid? If not, what is the isomer of butanoic acid?
Net capital assets in the governmental activities : What amount should be added to net capital assets in the governmental activities accounts in 2007?
Find percentage of observations fall in intervals : A sample of 3000 observations has a mean of 82 and a standard deviation of 16. Using the empirical rule, find what percentage of the observations fall in the intervals , and x+/- 1s, x+/- 2s x+/- 3s.
At what ph will mg2+ be precipitated : The concentration of Mg2+ in seawater is 0.052 M. At what pH will 74% of the Mg2+ be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9* 10-12.]
Relative frequency and cumulative frequency : Use 4 point bins 96 to 99, 92 to 95 etc. to make a frequency table for the set of exam scores. Include columns for relative frequency and cumulative frequency.
Explain how much will linda include in her taxable income : Ppaid $25,000 in premiums on a 20-year endowment policy on her life. The policy has a face value of $40,000. At age 60, Linda decides to collect the face value of the policy. In the year of collection, explain how much will Linda include in her ta..
Explain organic compounds solubility : Organic compounds solubility, The question is: Assuming that sugar is soluble in water and not most organic solvents, LIST the steps in ORDER that you would take for separating a 1:1 mixture of solid sugar and solid sodium benzoate

Reviews

Write a Review

Basic Statistics Questions & Answers

  Differentiating between means using alpha

Using data provided, test if there is a difference between means at alpha =.05.

  Study of coffee consumption among male and female

The following data were collected as part of a study of coffee consumption among male and female undergraduate students. The following reflects cups per day consumed:

  Probability of selecting a store at random

What is the probability of selecting a store at random and finding it has both a pharmacy and a floral shop?

  Probability of rolling two dices

Two balanced dice are rolled and the number of dots facing up is added. Find the probability that the sum is 10 or 12.

  Determining statistics-poisson distribution

Use the Poisson Distribution the indicated probabilities in one year, there were 116 homicide deaths in Richmond VA. For a randomly selected day

  Confidence interval to estimate the true average difference

The 90% confidence interval to estimate the true average difference in nationwide sales quantity before the ad campaign and after is (0.39, 16.64). Which of the following is the appropriate conclusion? The differences were calculated as (after ad ..

  Probability-selection of tax returns

A IRS auditor randomly selects 3 tax returns from 57 returns of which 6 contains errors. What is the probability that she selects none of those containing errors?

  Probability that in any partcular cookie being inspected

If the production process is in control, the mean number of chips per cookie is 6.0 What is the probability that in any particular cookie being inspected. What is probability that in any partcular cookie being inspected, there are less than 4 choco..

  Probability that at least one televisions does not work

if tow televisions are randomly selected, compute the probability that both televisions work. what is the probability that at least one does not work?

  Determining test of correlation coefficient

A random sample of 12 paired observations indicated a correlation of .32. Can we conclude that the correlation in the population is greater than zero? Use the .05 significance level.

  Describe the correlation strength

Bicycle helmet use. Table lists data from a cross-sectional survey of bicycle safety. The explanatory variable is a measure of neighbourhood socioeconomic status (variable_RFM). The response variable is "percent of bicycle riders wearing a helmet"..

  Information of correlation and regression

Archaeopteryx is an extinct beast having feathers like a bird but teeth and a long bony tail like a reptile. Five fossil specimens have preserved both the femur and humerus bones. The measurements (in centimeters) for each bone are given below.

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