Question

A chocolate company produces 2 types of chocolate: type A and type B. The company selects 25 random packages of each type to check their weight and finds that one package of type A has an incorrect weight and 3 packages of type B have an incorrect weight?

A chocolate company produces 2 types of chocolate: type A and type B. The company
selects 25 random packages of each type to check their weight and finds that one
package of type A has an incorrect weight and 3 packages of type B have an incorrect
weight.
How many packages should the company predict have an incorrect weight when it
checks 2000 of each type?

Answer 1

Type A fail predicted is 80

Type B fail predicted is 240

Explanation:

Theoretical probability.

Likely hood of fail

Type A fail: `P(A)= 1/25`

Type B fail: `P(B)=3/25`

For type A `->P(A)xx2000 ->1/25xx2000 = 80`

For type B `->P(B)xx2000 ->3/25xx2000 = 3xx80 = 240`