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An organisation selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family: owning not more than 1 vehicle.

Q5. An organization selected 2400 families at random and surveyed them to determine a
relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below:

(v) owning not more than 1 vehicle.

Answers (1)
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Although it is given that,

Total no. of families= 2400

Let us find by this adding all the cases

= 10+0+1+2+1+160+305+535+469+579+25+27+29+59+82+0+2+1+25+88 =2400 

Total number of families owning not more than 1 vehicle= 10+0+1+2+1+160+305+535+469+579 = 2062

Let, P(families owning not more than 1 vehicle)= P5

P5 = 2062/2400

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