Question

A survey of 200 people was conducted to find out their blood group. It was found that 50 people have type
“A” blood, 65 have “B” blood type, 70 have “o” blood type and 15 have type AB blood. If a person from
this group is selected at random, what is the probability that this person has blood type “O

Answer 1

Answer:

7/20

Step-by-step explanation:

Total people = 200

Number of people having blood type O = 70

Probability = 70/200 = 7/20

HOPE IT HELPS

Answer 2

Answer:

The answer is ¼.

Step-by-step explanation:

First add all the blood types i.e

65+70+15=150

Then subtract the sum from 200 to find the no of people with blood group O i.e.

200-150=50

Then to gind the probability of the person with blood group O divide the no. of people with blood group O with the total people i.e.

50/200

And you have your answer is ¼.

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