Question

an an organisation selected 2400 family at render them may determine our relationship between income level and the number of vehicle in the family they information gathered is listed in the table below​

Answer 1

Answer:

20000- 300001234567&&+$8$

Answer 2

Total no. of families considered = 2400  

(i) P(a family earning Rs 10000 – 13000 per month and owning exactly 2 vehicles)

= No. of families earning Rs 10000 – 13000 per month and owning 2 vehicles /Total no. of families = 29 / 2400

(ii) P (a family earning Rs 16000 or more per month and owning exactly 1 vehicle)

= No. of families earning Rs 16000 or more per month and owning 1 vehicle/ Total no. of families = 579/ 193 = 2400/ 800

(iii) P(a family earning less than Rs 7000 per month and does not own any vehicle)  

= No. of families earning less than Rs 7000 per month and does not own any vehicle /Total no. of families = 10 / 2400 = 1 / 240

(iv) P(a family earning Rs 13000 – 16000 per month and owing more than 2 vehicles)

= No. of families earning Rs 13000 – 16000 per month and owning more than 2 vehicles / Total no. of families

= 25/ 2400 = 1 /96

(v) P (a family owning 0 vehicle or 1 vehicle) = P (a family not owning more than 1 vehicle)

= (10 +0+ 1+ 2+ 1+ 160+ 305+ 535+ 469+ 579) / 2400

 = 2062 /  2400

= 1031/ 1200