65% of students in a class are from Asia. We select 8 students. What is the...

65% of students in a class are from Asia. We select 8 students. What is the chance that all 8 of them are from Asia?

Select one:

a. less than 1 percent chance

b. 0.65

c. Not enough information is given

d. 5.2

e. 0.032

Solutions

Expert Solution

The probability formula is used to compute the probability of an event to occur. To recall, the likelihood of an event happening is called probability.

The probability formula is used to compute the probability of an event to occur. To recall, the likelihood of an event happening is called probability. When a random experiment is entertained, one of the first questions that come in our mind is: What is the probability that a certain event occurs? A probability is a chance of prediction. When we assume that, let’s say, x be the chances of happening an event then at the same time (1-x) are the chances for “not happening” of an event.

Similarly, if the probability of an event occurring is “a” and an independent probability is “b”, then the probability of both the event occurring is “ab”. We can use the formula to find the chances of an event happening.

Formula to Calculate Probability

The formula of the probability of an event is:

Thus in the question the probility will be calculated as 65/100=0.65 i.e 65% chances are there that all the students are of asia. correct answer is b) 0.65

ekkarill92 answered 1 year ago

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