There are 644 boys and 520 girls in a school. The probability that a boy is chosen at random studies French is 3/7. The probability that a girl is chosen at random studies French is 5/8. a) Work out the number of students in the school who study french
b) What is the probability, as a fraction, that a student chosen at random from the whole school does NOT study French

a. 601

b.

Step-by-step explanation:

a. The number of students in the school who study french:

The number of boys who study french + The number of girls who study french:

= (3÷7)×644+(5÷8)×520

= 601

b. the probability that a student does NOT study French :

= P(boy does not study french) + P(girl does not study french)

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation:

sorry not sure

step-by-step explanation: