Hello There!
The first one seems alright.
The second one it would be 1/2.
This is because half of the options have “R” on them.
This problem is incomplete, but I think I know the probable question. Normally, you should have been given the target number of the company's video stores, so that you can replace the value of y and solve for x. Once you solve for x, you add this to year 1990 then you can solve for the year at which you can reach your target value. Suppose y = 3500 stores.
3500 = -264x + 4682
3500 - 4682 = -264x
-1182 = -264x
x = 4.48 years
Technically, that is equal to 4 years. Hence, the year would be 1990+4 = 1994.
The probability that the selected consumer is 35–55 years old or likes Crunchicles is 0.444.
Number of people who liked Crunchicles = 121
Number of people who are 35 - 55 years of age = 120
Number of people who are 35-55 years of age or like crunchicles = 121 + 120 - 19
The probability that the selected consumer is 35–55 years old or likes Crunchicles = 222/500 = 0.444.
