7. A hotelier conducted a survey of guests staying at her hotel. The table shows some of the results of her survey.
Type of gues
Probability
Man
0.7
Woman
0.3
American man
0.2
American woman
0.05
Vegetarian
0.3
Married
0.6
a. A guest was chosen at random. From the table work out these probabilities:
i The guest was American
The guest was unmarried
The guest was not a vegetarian
b. Explain why it is not possible to work out from the table the probability of a
guest being a married vegetarian
c. From the table, give two examples of pairs of types of guest that would form a
pair of mutually exclusive events.
d. From the table, give one example of a pair of types of guest that would form a
pair of exhaustive events.

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.

i’m kinda new to precal but your answer should be 21. hope i got it right.

step-by-step explanation: