1.

A survey was taken at a high school, and the results were put in a circle graph. The students were asked to list their favourite colours. The measurement of each central angle is shown. If a person is chosen at random from the school, find the probability of each response. What is the probability of favourite colour being blue or green ?

Answer»

<P>0.1
0.2
0.3
0.4

Solution :P(BLUE of green) `=(72^(@)+36^(@))/(360^(@))=(108^(@))/(360^(@))=(3)/(10)=0.3`
Thus ( c ) is CORRECT option.


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