Question

The conditional relative frequency table was generated using data that compares the number of voters in the last election and whether or not they worked on election day. Fifty people who voted and 85 people who did not vote were chosen at random and surveyed.
How many people in the survey worked on election day?

32
34
66
69

Answer 1

Answer: 66

Step-by-step explanation:

From the given conditional relative frequency table , it can be seen that

The probability of person who who did vote and work on election day= 0.64

If the total number of person voted = 50

Then, the number of person who did vote and work on election day=$0.64\times50=32$

The probability of person who who did not vote but did work on election day= 0.4

If the total number of person did not vote= 85

Then, the number of person who did vote but did work on election day=$0.4\times85=34$

Now, the number of people in the survey worked on election day= $32+34=66$

Answer 2

I think it is 66(think)