The following table shows the distribution of househcld incornes in 2010 for a s

Question

The following table shows the distribution of househcld incornes in 2010 for a sample of 1,000 households in a country with incomes up to $100,000 Income020,00040,000- 60,00000,000- Bracket($) | 19,gg?| 39rggg | 59,099 | 79,999 | g9rg Households230 200 100 170 (a) Let Xbe the (rounded) mldpolnt of a bradket in which a household falls. Find the relative frequency distribution of X, and graph its histogram, HINT [See Example 4.] 0.3 0.3 0.25 0.2 0.I5 0.1 0,05 1.3 0 25 0.2 ? 15. 03 0.2 0.15 0.1 0,05 0 2 0.15 0.1 0.05 0 05 0,000 30,000 50,000 70,000 90,000 0000 30,000 50,000 70,000 90,000 10,000 30,000 50,000 70,00 93,000 10,000 30,000 50,000 70,000 90,000 b Shade the area of your histogram corresponding to the probobility that a randamly selected household in the sample has a value of X above 50,00O. What is this probability? Need Help?ReadMaster

Explanation / Answer

Solutionb:

>50000=0.17+0.12=0.29

probbaility=0.29

Income bracket probability 0-119999 0.23 20000-39999 0.3 40000-59999 0.18 60000-79999 0.17 80000-99999 0.12

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