Recent questions in Upper level probability

Upper level probabilityAnswered question

Assume that the monthly worldwide average number of airplaine crashes of commercial airlines is 2.2$2.2$. What is the probability that there will be) at most 2$2$ such accidents in the next 2$2$ months?

Upper level probabilityOpen question

jamilla.ricag093004 2022-03-31

A wallet containing five 100-peso bills, four 200-peso bills, one 500-peso bill, and seven 1,000-peso bills. Which of the following probability distribution table is the appropriate to describe the given situation? *

Upper level probabilityAnswered question

individual plays a game of tossing a coin where he wins Rs 2 if head turns up and nothing if tail turns up.On the basis of the given information, find (i) The expected value of the game. (4) (ii) The risk premium this person will be willing to pay to avoid the risk associated with the game.

Upper level probabilityOpen question

desireegarvin 2022-03-22

Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 5 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or classes.

Upper level probabilityAnswered question

Binomial Distribution. We conduct 8 trials with a probability π=.63 of success.

Upper level probabilityAnswered question

Alan Smith 2022-01-14

What is Var(X - Y)?

We know that the formula for Var(X + Y) is Var(X) + Var(Y) + 2Cov(X,Y)

Does this mean that for Var(X - Y) it is just:

Var(X) - Var(Y) - 2Cov(X,Y)?

We know that the formula for Var(X + Y) is Var(X) + Var(Y) + 2Cov(X,Y)

Does this mean that for Var(X - Y) it is just:

Var(X) - Var(Y) - 2Cov(X,Y)?

Upper level probabilityAnswered question

In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain university, while 16% with a Math SAT of less than 700 were admitted. Further, 36% of all applicants had a Math SAT score of 700 or more. What percentage of admitted applicants had a Math SAT of 700 or more? (Round your answer to the nearest percentage point.)

Upper level probabilityAnswered question

Daniell Phillips 2021-12-19

Evenats A and B are mutually exclusive. Which of the following statements is also true?

a.$P(A\cap B)=P\left(A\right)+P\left(B\right)$

b.$P(A\cup B)=P\left(A\right)+P\left(B\right)$

c. A and B are also independent

d.$P(A\cup B)=P\left(A\right)P\left(B\right)$

a.

b.

c. A and B are also independent

d.

Upper level probabilityAnswered question

UkusakazaL 2021-08-10

6% of male are color-blind. Suggest a male groub is randomly selected and tested, find the probability that the first color-blind will be found among the first 5 men tested.

Upper level probabilityAnswered question

UkusakazaL 2021-08-04

The doctor says there is a 75% probability that you have a kidney disorder or are diabetic. What is the probability that you both have a kidney and are diabetic if there is 40% chance kidney disorder and a 50% chance diabetic.

Upper level probabilityAnswered question

avissidep 2021-07-02

A balanced experimental design has a sample size of

(a) Calculate pairwise confidence intervals for the factor level means with an overall confidence level of 95%.

(b) Make a diagram showing which factor level means are known to be different and which ones are indistinguishable.

(c) What additional sampling would you recommend to reduce the lengths of the pairwise confidence intervals to no more than 2.0 ?

Upper level probabilityAnswered question

Clifland 2021-06-22

A study of about n=1000 individuals in the United States during September 21-22, 2001, revealed that 43% of the respondents indicated that they were less willing to fly following the events of September 11, 2001.
a. Is this an observational study or a designed experiment?
b. What problems might or could have occurred because of the sensitive nature of the subject? What kinds of biases might have occurred?

Upper level probabilityAnswered question

Anish Buchanan 2021-06-21

The analysis of variance table for a

Source, df, SS, MS, F

A, 2, 5.3

B, 3, 9.1

AB, 6,

Error, 12, 24.5

Total, 23, 43.7

a. Fill in the missing items in the table.

b. Do the data provide sufficient evidence to indicate that factors A and B interact? Test using

c. Do the data provide sufficient evidence to indicate that factors A and B affect the response variable x? Explain.

Upper level probabilityAnswered question

vestirme4 2021-06-01

To evaluate

$\int {\mathrm{tan}}^{3}(\pi x)dx$

Upper level probabilityAnswered question

Haven 2021-06-01

Toss a fair die four times. What is the probability that all tosses produce different outcomes?

Upper level probabilityAnswered question

Alyce Wilkinson 2021-05-30

There are three women and four men in a group of seven people. If three people are selected from the total of seven, find the following: i)What are the total possible outcomes for this selection? ii)How many ways can two women and one man be selected? iii)What is the probability of selecting two women and one man?

Upper level probabilityAnswered question

ddaeeric 2021-05-29

Derive

Upper level probabilityAnswered question

Ayaana Buck 2021-05-26

The paired comparisons option in MINITAB generated the output provided here. What do these results tell you about the differences in the population means? Does this confirm your conclusion of the analysis-of-variance?
MINITAB output
Tukeys

The majority of college-level probability practice problems will include questions related to statistics with the answers and explanations that will explain how a certain riddle has been addressed. Just think about flipping a coin or throwing dice as an example or finding a red marble in the bag with the green marbles. It is all about probability where the college probability will have more complex questions with the necessity of different equations and quantitative data questions where formulas must be used to determine the possibility of a certain outcome or prognosis. We offer help by letting you see various probability examples