Out of a sample of 80 batteries, 3 are faulty. What percentage of the batteries are faulty?
80F = 100 | F = 10/8 | 3(10/8) = 3.75 | Therefore, 3.75% of the batteries are faulty.
PS
80F = 100 | F = 10/8 | 3(10/8) = 3.75 | Therefore, 3.75% of the batteries are faulty.