 # Ace Your Upper level probability Tests with Plainmath's Expert Help and Detailed Resources

Recent questions in Upper level probability

## 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? jamilla.ricag093004 2022-03-31

## 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. desireegarvin 2022-03-22

## Binomial Distribution. We conduct 8 trials with a probability​ π=.63 of success. Alan Smith 2022-01-14

## 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.) Daniell Phillips 2021-12-19

## Evenats A and B are mutually exclusive. Which of the following statements is also true? a. $P\left(A\cap B\right)=P\left(A\right)+P\left(B\right)$ b. $P\left(A\cup B\right)=P\left(A\right)+P\left(B\right)$ c. A and B are also independent d. $P\left(A\cup B\right)=P\left(A\right)P\left(B\right)$ 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. 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. avissidep 2021-07-02

## A balanced experimental design has a sample size of $n=11$ observations at each of $k=3$ factor levels. The sample averages are . (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 ? 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? Anish Buchanan 2021-06-21

## The analysis of variance table for a $3×4$ factorial experiment, with factor A at three levels and factor B at four levels, and with two observations per treatment is shown here: 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 $\alpha \alpha =.05$. What are the practical implications of your answer? c. Do the data provide sufficient evidence to indicate that factors A and B affect the response variable x? Explain. vestirme4 2021-06-01

## To evaluate $\int {\mathrm{tan}}^{3}\left(\pi x\right)dx$ Haven 2021-06-01

## Toss a fair die four times. What is the probability that all tosses produce different outcomes? 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? ddaeeric 2021-05-29
## Derive $100\left(1-\alpha \right)$ percent lower and upper confidence intervals for p, when the data consist of the values of n independent Bernoulli random variables with parameter p. Ayaana Buck 2021-05-26