Completing the probability distribution

Assignment Help Basic Statistics
Reference no: EM1387330

A dish contains 20 gumballs - 9 blue, 6 red and 5 white. We randomly select two gumballs from the dish without replacement.

a) Let X be the number of blue gumballs selected. Complete the probability distribution of X by filling in the appropriate probabilities below:

x 0 1 2
P(X = x)

b) What is the probability that X = 1 if no red gumballs are selected?

c) What is the expected value of X?

Reference no: EM1387330

Questions Cloud

Critical elements of the research process : Explain the critical elements of the research process, addressing the importance of carrying out the following research steps. Limit your response to 100 words.
Indicate the inheritance pattern : Explain a specific example of a cross in two parents, each homozygous for different traits, which would result in a phenotype that is distinct from either parental phenotype.
After a number of complaints about its directory assistance : After a number of complaints about its directory assistance, a telephone company examined samples of calls to determine the frequency of wrong numbers given to callers
The system reliability for a three-component series : The system reliability for a three-component series system is 0.911988. If the reliability of the first and third components is 0.94 and 0.98
Completing the probability distribution : A dish contains 20 gumballs - 9 blue, 6 red and 5 white. We randomly select two gumballs from the dish without replacement. a) Let X be the number of blue gumballs selected. Complete the probability distribution of X by filling in the appropriate p..
Explain animation schemes comprise slide transitions : Some animation schemes comprise slide transitions and some don't. When would the transition be suitable? When would it not be suitable?
What is the ideal mechanical advantage of a ramp : Two loudspeakers are placed 3-m apart. They emit 498 Hz sounds, in phase. A microphone is placed 3.2m distant from a point midway between the two speakers, where an intensity highest is recorded.
Evaluate the impact of the proposal to cut prices : Evaluate the impact of the proposal to cut prices and what is the optimal profit-maximizing markup suggested by economic theory?
Illustrate what would you consider when trying to decide : Illustrate what would you consider when trying to decide what criteria (e.g., percentage of time spent) to use for gathering indications about task importance?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Summary of distribution of life expectancy

Write a brief summary of the distribution of life expectancy.

  Comparing relationship between iv and dv

Which measure of association would the researcher use to compare the relationship between the IV and DV? Why?

  How to describe the standard normal distribution

Describe the standard normal distribution. Explain why it can be used to find probabilities for all normal distributions.

  Determine if there are patterns of either excellence or lack

These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.

  Formulating the null and alternative hypotheses

Formulate the null and alternative hypotheses for this application.

  Linear correlation between the number of cigarettes

Describe the error in the conclusion. Given: There is a linear correlation between the number of cigarettes smoked and the pulse rate. As the number of cigarettes increases the pulse rate increases. Conclusion: Cigarettes cause the pulse rate to i..

  Finding best decision using decision criteria

Find out best decision, by using following decision criteria.

  Population standard deviation by level of significance

It is believed that population standard deviation is 15 days. If test is conducted using 0.05 level of significance, what conclusion must be reached?

  Mean square within treatments

To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments.

  Computing z and state decision regarding null hypothesis

Compute the value of z and state your decision regarding the null hypothesis.

  Probability of tossing die-using normal approximation

Use the normal distribution to approximate the desired probability. Find the probability that in 200 tosses of a fair die, we will obtain at exactly 30 faces.

  Single mean by hypothesis test

Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?

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