HELP ME PLEASE please

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

6 0

Answer:

a) 1504

Step-by-step explanation:

a. no of people that are male = 42

b. no of people that study biology = 34

c. no of people that do both = 1428(42 × 34)

d. no of people that are Male or study biology or both = 42 + 34 + 1428= 1504

a.no of people that are male or female = 90

prob(male) = 14 ÷ 90

= 0.16

b. prob(bio) = 34 ÷ 34

= 1

c.prob(both) = 0.16

d. prob(all) = 0.16 + 1 + 0.16

= 1.32

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