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kogti [31]
2 years ago
13

Eight identical slips of paper, each containing one number from one to eight, inclusive, are mixed up inside a bag. Subset A of

the sample space represents the complement of the event in which the number 6 is drawn from the bag.
Which shows subset A?

A = {6}
A = {1, 3, 5, 7}
A = {1, 2, 3, 4, 5, 7, 8}
A = {1, 2, 3, 4, 5, 6, 7, 8}
Mathematics
2 answers:
DochEvi [55]2 years ago
7 0

Answer:  The correct option is (C) A = {1, 2, 3, 4, 5, 7, 8}.

Step-by-step explanation: Given that eight identical slips of paper, each containing one number from one to eight, inclusive, are mixed up inside a bag.

The sample space, S will be

S = {1, 2, 3, 4, 5, 6, 7, 8}.

Subset A of the sample space represents the complement of the event in which the number 6 is drawn from the bag.

Let, 'B' represents the event in which the number 6 is drawn from the bag.

So, B = {6}.

Since 'A' is the complement of 'B', so the set 'A' will contain those element of the sample space 'S' that are not in the set 'B'.

Therefore,

A = B' = {1, 2, 3, 4, 5, 7, 8}

⇒ A = {1, 2, 3, 4, 5, 7, 8}.

Thus, (C) is the correct option.

d1i1m1o1n [39]2 years ago
6 0

I will assume that it is a single slip then subset A = {1,2,3,4,5,7,8} (i.e. "1 is drawn", "2 is drawn" etc.)

which is the complement of A^c = {6} ("6 is drawn")


The answer is A = {1,2,3,4,5,7,8}

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Answer:

46.91% probability that at least nine participants complete the study in one of the two groups, but not in both groups

Step-by-step explanation:

We use two binomial trials to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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0.3758 probability that at least nine participants complete the study in a group. This means that p = 0.3758

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