Variance and standard deviation of number of admissions

Assignment Help Basic Statistics
Reference no: EM13100520

The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.

Admissions Probability

1,070 0.3

1,300 0.1

1,580 0.6

--------------------------------------------------------------------------------

(1) What is the expected number of admissions for the fall semester? (Round your answers to the nearest whole number.)

Expected number of admissions __________

(2) Compute the variance and the standard deviation of the number of admissions. (Round your answers to 2 decimal places.)

Variance __________

Standard deviation _____________

Reference no: EM13100520

Questions Cloud

How low can we profitably go? : Prepare a memo: How Low Can We Profitably Go -  Recent reports reveal that Everest has started a new wave of construction in the Kansas City area, after having stopped their expansion one year ago. Their financial health has apparently improved ov..
Information regarding poisson probability : What type of probability distribution is appropriate for this problem? Determine the probability of getting no calls between eight and nine in the morning. Calculate the probability of getting exactly five calls between eight and nine in the morning
How far could you pedal a bicycle : Suppose your body was able to use the chemical energy in gasoline, How far could you pedal a bicycle? How far could you pedal a bicycle at 15km/hr on the energy in 1.8 gal of gas? (1 gal of gas has a mass of 3.2 kg)
Explain strategic management and planning : Select a small business that you may want to start and write a brief description of it. What is strategic management and planning? Why would a strategic plan be important to the success of this business?
Variance and standard deviation of number of admissions : The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.
How much power must the motor supply : An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
Determine the percentage of samples of size : Scores of an aptitude test are normally distributed with a mean of 280 and a standard deviation of 30. Determine the percentage of samples of size 4 that have a mean score within 21 points of the population mean score of 280.
Information about binomial distribution : Given a binomial distribution with n=29 and p=0.83, would the normal distribution provide a reasonable approximation? Why or why not.
Write implications for treatment from cultural influences : Write down the implications for treatment from the following cultural influences: A 1st generation 50 year old greek american female is looking treatment as her husband is verbally abusive.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine measures of central tendency

Compute the mean, median, and mode. Which of these measures of central tendency do you think most accurately describes the lifestyle variable you are looking at?

  The degrees of freedom

Assuming the nurses surveyed were a random sample from the population of all nurses in the United States, we can use these data to test the null hypothesis H0 that there is no association between the row and column variables in this two-way table...

  Anova for factorial experiments

The data are number of trials to learn to go left at the first turn in a maze for each of their 20 rats. Answer each of the four questions and don't forget to include a verbal statement of your interpretation of the outcomes.

  Comparing effected group to control group

A group of 200 adults aged 21 to 50 were chosen from those entering Fit Right Health stores in Washington State, and were randomly divided in two groups.

  Characteristics of central limit theorem

Why do so many of life's events share the same characteristics with Central Limit Theorem? Why are estimations and confidence intervals important?

  Finding tc with confidence level and sample size

Find the t c for a 90% confidence level with a sample size of 18.

  Regression equation abd sum of square for error

Determine SSE, SS (Total) and the explained sum of squared variation SSR and find the estimated y intercept slope and write the regression equation.

  Mean for the discrete data

Given are the numbers of times the machine was used over each of the last 30 days. Find out the mean number of times the machine was used per day.

  Research regarding diabetes and alcohol consumption

Read the data from the fictitious research study regarding diabetes and alcohol consumption, and analyze and interpret the results.

  Regression and automated testing plan

Please prepare a Regression and Automated Testing Plan for a Course Project. A business letter to the Jonesville Library introducing the contents of the document

  Number of tumors in a fish living in a river

Let X be the number of tumors in a fish living in a river. Suppose that it has the following probability mass function f(0) = 0.9 f(1) = 0.7 f(2) = 0.02 f(3) = 0.01 A random sample of size n = 30 is selected from this population. Approximate the p..

  Control limits using r chart

Thirty-two samples of 8 items each were collected from a process. The average sample mean is 12 and the average range is 0.10.

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