determine probability that a randomly selected customer was either a woman or rated his or her stay as fair
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Rating Men Women
Excellent 4 10
Good 19 13
Fair 17 7
Poor 7 4
determine
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- Recal the example in class and also in the notes I sent to you. Work again on the example as follows. Example: Suppose that 2 defective microwaves have been included in a shipment of 6 microwaves. The buyers want to test the 6 microwaves one at a time. Let Y denote the number of defective microwaves is found after 3 random selected ones have been tested. Find the probability distribution for Y. Y = the number of defective microwaves found after 3 have been tested What's the possible value of Y? Y P(Y=y) ? ? Questions: 1- Fill the table above with random variables and corresponding probabilities? 2- Calculate the probability that the buyers can find at least 1 defective microwave after 3 have been tested? 3- Find the probability that buyers cannot find any defective microwave after 3 random ones have been tested?find mean and sd.. Outcome Probability 1 0.02 2 0.13 3 0.21 4 0.18 5 0.46A bag contains 3 red and 2 black balls. If a simple random sample of 2 balls is selected, what is the probability of selecting a red ball and a black in any order? A. 6/25 B. 2/25 C. 2/5 D. 3/5
- In a class of students, the following data table summarizes how many students have a cat or a dog. What is the probability that a student chosen randomly from the class does not have a cat or a dog? Has a dog Does not have a dog Has a cat 9 6 Does not have a cat 2 11. Assume that 75 percent of the students at the university have taken 4 years of high school math. Of those with four years of high school math, 80 percent plan to major in science. Of those without 4 years, only 10 percent plan to major in science. You stop a student at random. If the student plans to major in science, what is the probability that this student had four years of high school math?Answer this question correctly deals with probability of simple events.
- 1. Use this table for the following questions: Female Male TotalShort Hair 20 40 60 Long Hair 30 10 40 Total 50 50 100 a. Complete a total probability table.b. Complete a row probability tablec. Complete a column probability table.d. The probability that a student does not have long hair. _________e. The probability that a student is male or has short hair. ________f. The probability that a student is a female and has long hair. _________g. The probability that a student is male, given that the student has long hair. _________h. The probability that a student has long hair, given that the student is male. _________i. Of all the female students, the probability that a student has short hair. ________j. Of all students with long hair, the probability that a student is female. _________k. The probability that a student is female or has long hair.…Full Time Part Time Boys 3 10 13 Girls 16 11 27 total 19 21 40 A student selected at random. What is the probability that the selected student is from girls given that she is from part time?Find the mean and variance of the number of games in the World Series. Assume we have two teams, A and B. Recall that it is won by the first team to win four out of the seven games and assume that the outcomes are determined by flipping a coin.
- A hotel asked its customers to rate their stays as Excellent, Good, Fair, or Poor. The accompanying table shows the frequency of each rating as well as the gender of the customer.Rating Men WomenExcellent 2 10Good 20 13Fair 17 7Poor 6 3Determine the probability that a randomly selected customer rated her stay as good, given the customer was a woman.MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the mean of the given probability distribution. 6) In a certain town, 40% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree. 6) P(x) 0|0.1296 10.3456 2 0.3456 3 0.1536 4 0.0256 A) µ= 1.73 B ) μ= 2.00 Ομ= 16 D) µ = 1.507. Can you find the shaded area? probability -3 -2 -1.5 -1 1 3 to search 99+ Desktop DELL F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtS %24 % & 4 6. 8. 9. T Y H F.
