Question 1
given the following information about events a, b, and c, determine which pai...
Mathematics, 15.11.2019 21:31, shaylarreyes
Question 1
given the following information about events a, b, and c, determine which pairs of events, if any, are independent and which pairs are mutually exclusive.
p(a)=0.26 , p(b)=0.5 , p(c)=0.45 . p(a|b)=0.26 , p(b|c)= 0 , p(c|a)=0.26
select all correct answers.
select all that apply:
b and c are independent
a and c are mutually exclusive
a and b are independent
a and c are independent
b and c are mutually exclusive
a and b are mutually exclusive
question 2
let e be the event that a randomly chosen person exercises. let d be the event that a randomly chosen person is on a diet. identify the answer which expresses the following with correct notation: of all the people who exercise, the probability that a randomly chosen person is on a diet.
select the correct answer below:
p(d) and p(e)
p(e and d)
p(e|d)
p(d|e)
Answers: 1
Mathematics, 20.06.2019 18:04, 8236
Fran would like to estimate the mean amount of time it takes people in her town to travel to work. the town's population is 150,000 and about 90,000 of those are working adults. which statements are true? select each correct answer. there is no way to infer the value of the mean. she must collect data for all 90,000 working adults and calculate the mean. a larger sample of working adults will provide a better estimate of the true mean than a smaller sample. the population of working adults is too large for using a sample to estimate the mean of the entire group. if she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.
Answers: 2
Mathematics, 21.06.2019 22:30, badpotterchris
60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?
Answers: 1
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