A carton of hard drinks

containing 20 bottles or Guider,
15 bottles of Star and 5 bottles of
Harp. What is the probability of
not choosing any of the bottles
from the information given?

To find the probability of not choosing any bottles, we need to determine the total number of bottles in the carton.

The carton contains 20 bottles of Guider, 15 bottles of Star, and 5 bottles of Harp.

So, the total number of bottles in the carton is 20 + 15 + 5 = 40.

The probability of not choosing any bottles is then 0, since with 40 bottles in the carton, it is impossible not to choose any bottles.

To find the probability of not choosing any of the bottles, we need to determine the total number of bottles in the carton and subtract it from the number of all possible choices.

The total number of bottles in the carton can be calculated by adding the number of bottles of each brand together:
20 bottles of Guider + 15 bottles of Star + 5 bottles of Harp = 40 bottles in total.

The total number of all possible choices is the sum of the individual counts of each brand of bottles:
20 bottles of Guider + 15 bottles of Star + 5 bottles of Harp = 40 possible choices.

Therefore, the probability of not choosing any of the bottles would be:
(Number of not chosen bottles) / (Total number of possible choices)

Since we want to not choose any bottles, the number of not chosen bottles would be 0.

So, the probability of not choosing any of the bottles is:
0 / 40 = 0