in the 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
To find the probability that both a boy and a girl chosen at random can ride a bicycle, we need to multiply the probability of a boy being able to ride a bicycle by the probability of a girl being able to ride a bicycle.
In this case, the probability that a boy can ride a bicycle is 70% or 0.70, and the probability that a girl can ride a bicycle is 55% or 0.55.
Therefore, the probability that both a boy and a girl chosen at random can ride a bicycle is 0.70 * 0.55 = 0.385 or 38.5%.
To find the probability that both the boy and the girl can ride a bicycle, we need to multiply the probability of the boy being able to ride a bicycle (70%) by the probability of the girl being able to ride a bicycle (55%).
Probability (boy can ride a bicycle) = 70% = 0.70
Probability (girl can ride a bicycle) = 55% = 0.55
Probability (both can ride a bicycle) = Probability (boy can ride a bicycle) × Probability (girl can ride a bicycle)
= 0.70 × 0.55
= 0.385
Therefore, the probability that both the boy and the girl can ride a bicycle is 0.385 or 38.5%.
To find the probability that both a boy and a girl chosen at random can ride a bicycle, we need to multiply the individual probabilities.
Let's denote the probability that a boy can ride a bicycle as P(boy) = 0.70, and the probability that a girl can ride a bicycle as P(girl) = 0.55.
To find the probability of both events happening, we multiply the two probabilities together:
P(boy and girl) = P(boy) * P(girl)
= 0.70 * 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%.