Question

there are 30 red rose and 20 yellow rose and 10 pink rose in a vase. find the probability of the given event​

Answer 1

Answer:

Total number of roses in the flower pot =5+3+2=10

∴ Number of possible outcomes to select a rose at random is 10.

(i) Let 'A' be the event that the selected rose is of red colour.

No. of red roses in the flower pot =5

∴P(A)=

10

5

=0.5

(ii) Let 'B' be the event that the selected rose of of yellow colour.

No. of yellow roses in the flower pot =2

∴P(B)=

10

2

=0.2

(iii) Let C be the event when the selected rose is white in colour.

Then,

C

is the event when the selected rose is not of white colour.

No. of white roses in the flower pot =3

∴P(C)=

10

3

=0.3

Now, P(

C

)=1−P(C)=1−0.3=0.7

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