Author Question: The first two columns of the table below give a percentage distribution for adults in one city by ... (Read 60 times)

ec501234 · **on:** Aug 2, 2018

The first two columns of the table below give a percentage distribution for adults in one city by income group. The third column gives the percentage of people in each income group who plan to buy a new car next year.

Income Percentage Percentage that will
(dollars) of population buy new car next year
0 - 4999 5.2 2
5000 - 9999 6.4 3
10,000 - 14,999 5.4 6
15,000 - 19,999 8.7 7
20,000 - 24,999 9.4 9
25,000 - 29,999 10.2 10
30,000 - 34,999 13.8 11
35,000 - 39,999 10.7 13
40,000 - 49,999 15.5 15
50,000 and over 14.7 19

An adult is picked at random from the city. Given that the person selected plans to buy a new car next year, what is the probability that the person's income is between 5,000 and 9,999?
A) 0.03 B) 0.02 C) 0.05 D) 0.01

Question 2

A market researcher obtains a sample of store customers by standing outside a store and selecting every 5th customer who enters the store.

A) Yes B) No