shows the working in a primary school 70% of the boys and 55% of the girls can ride a bicycle if a boy and a girl are chosen at random what is the probability that both of them can ride a bicycle

Answer 1

To calculate the probability that both a boy and a girl chosen at random can ride a bicycle, we need to multiply the probabilities of each event happening.

The probability that a boy can ride a bicycle is 70% or 0.7 (given that 70% of boys can ride a bicycle).

The probability that a girl can ride a bicycle is 55% or 0.55 (given that 55% of girls can ride a bicycle).

Multiplying these probabilities together, we get:

0.7 * 0.55 = 0.385

Therefore, the probability that both a boy and a girl chosen at random can ride a bicycle is 0.385 or 38.5%.