3. A and B are two events of the sample space S = {1, 2, 3, 4, a, b, c, d}. If A = {2, 4, c, d} and B ={2, 4, 3, a, c} find: a) В b) A c) ANB

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Please help with number 3.
In how many ways can ihe market research firm appoint three fieldworkers from this
group?
3. A and B are two events of the sample space S = {1, 2, 3, 4, a, b, c, d}. If A = {2, 4, c, d} and
B ={2, 4, 3, a, c} find:
a) В
b) А
c) ANB
d) P(An B)
e) P (A U B)
f) P(A|B)
4. In a certain organisation, 40% of the employees are vaceinated against covid-19, 25% of the
employees are female and 10% of the female employees are vaceinated against covid-19.
4.1.If an employee is selected at random, what is the probability that
a) the employee is male and did not get the vaccine?
b) the employee is not vaccinated given that the employee is female?
4.2. Are events vaccinated and female independent?
5.The probability distribution of thenumber of negativercovid-19 tests after the first vaecine dose is
00
HUAWEI P30 lite
TRIPLE CAMERA
Transcribed Image Text:In how many ways can ihe market research firm appoint three fieldworkers from this group? 3. A and B are two events of the sample space S = {1, 2, 3, 4, a, b, c, d}. If A = {2, 4, c, d} and B ={2, 4, 3, a, c} find: a) В b) А c) ANB d) P(An B) e) P (A U B) f) P(A|B) 4. In a certain organisation, 40% of the employees are vaceinated against covid-19, 25% of the employees are female and 10% of the female employees are vaceinated against covid-19. 4.1.If an employee is selected at random, what is the probability that a) the employee is male and did not get the vaccine? b) the employee is not vaccinated given that the employee is female? 4.2. Are events vaccinated and female independent? 5.The probability distribution of thenumber of negativercovid-19 tests after the first vaecine dose is 00 HUAWEI P30 lite TRIPLE CAMERA
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