Question

At the school fete, the drinks sold in
the first hour were recorded:
Cola (27 cans) Lemonade (16 cans)
Orange (12 cans) Lemon (9 cans)
What is the probability the next drink
sold is lemonade?
%​

Answer 1

So far, they sold 16 lemonades out of

27+16+12+9=64 drinks.

So, 16/64 = 1/4 of the drinks sold so fare was lemonade. That's the expected probability of someone ordering a lemonade for the next drink.