How many crates from the sample are expected to have small to medium-sized eggs?

Question

Vasu places large-sized eggs in crates that each hold 12 eggs. It is known from previous experience that 20% of all such crates contain eggs that are small to medium-sized (instead of large). A random sample of 80 egg crates are selected from those that Vasu filled.

Answer 1

If we are looking at a sample of 80 egg crates, and we expect 20% of these crates to have small to medium-sized eggs, then we calculate 20% of 80.

20% of 80 means 0.20 * 80,

or 16 egg crates.