In a recent election in a small town, the numbers of Voters in each age group was recorded. The results are shown in the table below.

Age Group
<20
20-29
30-39
40-49
50-59
>60
Total
Number of voters
54
181
351
396
465
553
2000

Graph the probability distribution of the voting age.

2) Find P(20-49)

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?