Home
Class 12
MATHS
Consider a sample space "S" representing...

Consider a sample space `"S"` representing the adults in a small town who have completed the requirements for a college degree. They have been categorized according to sex and employment as follows: , Employed, Unemployed Male, 460, 40 Female, 140, 260 An employed person is selected at random. Find the probability that the chosen one is a male.

Text Solution

Verified by Experts

The correct Answer is:
`23//30`

Let m be the event that man is chosen and E be the event that chosen one is employed. From the concept of reduced sample space, we immediately get
`P(M//E)=(460)/(600)=(23)/(30)`
Also `P(E)=(600)/(900)=2/3`
`P(EnnM)=(460)/(900)=(23)/(45)`
`impliesP(E//M)=(23//45)/(2//3)=(23)/(30)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY II

    CENGAGE PUBLICATION|Exercise CONCEPT APPCICATION EXERCISE 14.2|3 Videos
  • PROBABILITY II

    CENGAGE PUBLICATION|Exercise CONCEPT APPCICATION EXERCISE 14.3|12 Videos
  • PROBABILITY II

    CENGAGE PUBLICATION|Exercise SOLVED EXAMPLES|21 Videos
  • PROBABILITY I

    CENGAGE PUBLICATION|Exercise JEE Advanced|7 Videos
  • PROGRESSION AND SERIES

    CENGAGE PUBLICATION|Exercise ARCHIVES (NUMERICAL VALUE TYPE )|8 Videos

Similar Questions

Explore conceptually related problems

There are some experiment in which the outcomes cannot be identified discretely. For example, an ellipse of eccentricity 2sqrt(2)//3 is inscribed in a circle and a point within the circle is chosen at random. Now, we want to find the probability that this point lies outside the ellipse. Then, the point must lie in the shaded region shown in Figure. Let the radius of the circle be a and length of minor axis of the ellipse be 2b. Given that 1 - (b^(2))/(a^(2)) = (8)/(9) or (b^(2))/(a^(2)) = (1)/(9) Then, the area of circle serves as sample space and area of the shaded region represents the area for favorable cases. Then, required probability is p= ("Area of shaded region")/("Area of circle") =(pia^(2) - piab)/(pia^(2)) = 1 - (b)/(a) = 1 - (1)/(3) = (2)/(3) Now, answer the following questions. Two persons A and B agree to meet at a place between 5 and 6 pm. The first one to arrive waits for 20 min and then leave. If the time of their arrival be independant and at random, then the probability that A and B meet is