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An organisation selected 2400 families a...

An organisation selected 2400 families at random and surveyed them to determine a relationship between the income level and the number of vehicles in a family . The information gathered is listed in the table below :

Suppose a family is chosen at random . Find the probability that the family chosen is
(i) earning ₹ 25000 - ₹ 30000 per month and owning exactly 2 vehicles .
(ii) earning ₹ 40000 or more per month and owing exactly 1 vehicle.
(iii) earning less than ₹ 25000 per month and not owing any vehicle .
(iv) earning ₹ 35000 - ₹ 40000 per month and owning 2 or more vehicles.
(v) Owing not more than 1 vehicle .

Text Solution

Verified by Experts

The correct Answer is:
`(9)/(800) (ii) (193)/(800) (iii) (1)/(240) (iv) (7)/(200) (v) (1031)/(1200)`
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RS AGGARWAL-PROBABILITY-Exercise 19
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  4. A die is thrown 300 times and the outcomes are noted as given below : ...

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  7. On a particular day , at a crossing in a city , the various types of 2...

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  10. 12 packets of salt , each marked 2 kg , actually contained the followi...

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  11. In a cricket match , a batsman hits a boundary 6 times out of 30 balls...

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  12. An organisation selected 2400 families at random and surveyed them to ...

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  13. The table given below shows the marks out by 30 students in a test . ...

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  14. The table given below shows the ages of 75 teachers in a school . ...

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  15. Following are the ages (in years) of 360 patients , getting medical tr...

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