Page 3 - Worksheet- Ch-15-Probability

Suppose a family is chosen. Find the probability that the family chosen is
(i) earning 10000-13000 per month and owning exactly 2 vehicles.
(ii) earning f 16000 or more per month and owning exactly 1 vehicle.
(iii) earning less than 7000 per month and does not own any vehicle.
(iv) earning 13000-16000 per month and owning more than 2 vehicles.

20. Two dice are thrown simultaneously 500 times. Each time the sum of two 4
numbers appearing on their tops is noted and recorded as given in the

Sum 2 3 4 5 6 7 8 9 10 11 12
Freque 14 30 42 55 72 75 70 53 46 28 15

ncy
following table:
If the dice are thrown once more, what is the probability of getting

i. a sum of 3?
ii. more than 10?
iii. less than or equal to 5?
iv. between 8 and 12?

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