Home
Class 9
MATHS
A survey of 300 girls of a school was co...

A survey of 300 girls of a school was conducted and it was found that 108 girls like tea and 192 dislike it. Out of these girls one girl is selected at random. What is the probability that the selected girl (i) likes tea (ii) does not like tea.

Text Solution

Verified by Experts

Total number of girls = 300
Number of girls who like tea = 108
Number of girls who dislike tea = 192
(i) Let `E_(1)` = event that the selected girl likes tea, then
`P(E_(1))=(108)/(300)=(9)/(25)`
(ii) Let `P(E_(2))` = event that the selected girl does not like does not like tea, then
`P(E_(2))=(192)/(300)=(16)/(25)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NAGEEN PRAKASHAN|Exercise Problems From NCERT/exemplar|7 Videos
  • PROBABILITY

    NAGEEN PRAKASHAN|Exercise Exercise|12 Videos
  • POLYNOMIALS

    NAGEEN PRAKASHAN|Exercise Revision Exercise (short Answer Questions)|16 Videos
  • QUADRILATERALS

    NAGEEN PRAKASHAN|Exercise Revision Exercise (long Answer Questions)|5 Videos

Similar Questions

Explore conceptually related problems

A survey of 250 girls of a school was conducted and it was found that 105 girls like tea while 145 dislike it . Out of these girls , one girl is selected at random . What is the probability that the selected girl (i) likes tea , (ii) does not like tea ?

In a survey of 200 girls it was found that 85 like tea while 115 dislike it.Out of these girls one girl is chosen at random.What is the probability that the chosen girls (i) likes tea? (ii) dislikes tea?

A survey of 150 girls showed that 63 like tea while 87 dislike it. Out of these girls, one girl is chosen at random. What is the probability that the chosen girl Q (i) likes tea (ii) dislikes tea

In a survey of 100 ladies it was found that 36 like coffee while 64 dislike it.Out of these ladies, one is chosen at random. What is the probability that the chosen lady Q(i) likes coffee (ii) dislikes coffee

From a group of 4 girls and 6 boys, a child is selected. Find the probability that the selected child is a girl.

1500 families with 2 children each , were selected randomly and the following data were recorded . Out of these families , one family is selected at random . What is the probability that the selected family has (i) 2 girls (ii) 1 girl , (iii) no girl ?

In a class 30% students like tea, 20% like coffee and 10% like both tea and coffee. A student is selected at random then what is the probability that he does not like tea if it is known that he likes coffee?

A class consists of 10 boys and 8 girls. Three stuents are selected at random. Find the probability that the selected group has: (i) all boys (ii) all girls (iii) 2 boys and 1 girl.

There are 60 boys and 40 girls in a class.A student is selected at random.Find the probability that student is a girl.