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Standard IX

Mathematics

Sum of Probabilities of Favorable and Unfavorable Event

Gowri asked ...

Question

Gowri asked $25$ people if they liked the taste of a new health drink. The responses are,
Responses Like Dislike Undecided
No. of people $15$ $8$ $2$
Find the probability that a person selected at random likes the taste

\frac{3}{5}

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\frac{4}{5}

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\frac{2}{5}

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None of these

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Solution

The correct option is A $\frac{3}{5}$
Probability that he/she likes $= \frac{l i k e}{t o t a l} = \frac{15}{25} = \frac{3}{5}$

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Gowri asked 25 people if they liked the taste of a new health drink. The responses are,ResponsesLikeDislikeUndecidedNo. of people1582Find the probability that a person selected at random likes the taste

The correct option is A 35Probability that he/she likes =liketotal=1525=35

Gowri asked $25$ people if they liked the taste of a new health drink. The responses are,
Responses Like Dislike Undecided
No. of people $15$ $8$ $2$
Find the probability that a person selected at random likes the taste

The correct option is A $\frac{3}{5}$
Probability that he/she likes $= \frac{l i k e}{t o t a l} = \frac{15}{25} = \frac{3}{5}$