Acertain cold remedy has an 88% rate of success of reducing symptoms within 24 hours. find the probability that in a random sample of 45 people who took the remedy

The probability of cured people in who took the remedy is 8/9.

Step-by-step explanation:

Success rate of the cold remedy = 88%

The number of people who took the remedy = 45

Now, 88% of 45 =

and 39.6 ≈ 40

So, out of 45 people, the remedy worked on total 40 people.

Now, let E: Event of people being cured by cold remedy

Favorable outcomes = 40

or,  =

Hence, the probability of cured people in who took the remedy is 8/9.

OPTION A

OPTION C

Step-by-step explanation:

A relation becomes a function when it satisfies the following two conditions:

(i) Any element from the domain can only be mapped to only element in the co-domain.

(ii) No element in the domain should be left unmapped.

Note that an element in the co-domain need not have a pre - image.

OPTION A: Every element has an image and no element is mapped to two different elements on the co - domain. so, it is a function.

OPTION B: The element 9 is mapped to both 4 and 6. Condition (1) is not satisfied. So, it is not a function.

OPTION C: Both the conditions of a function are satisfied. So, OPTION C is a function. Note that the element 8 in the co - domain does not have a pre - image but it is still a function.

OPTION D: Element 1 in the domain is mapped to two elements. Violation of Condition (i). So, it is not a function.