Respuesta :
Answer:
a. ║x - p║ = 3% b. the least percent of voters for the incumbent is 53 % and the greatest percent of voters for the incumbent is 59 %
Step-by-step explanation:
a. Let x represent the number of voters and p represent the percentage determined by the poll. Since we have a 3 % margin error, we have
x - p = ± 3%.
So, ║x - p║ = 3%
b. So, we solve the equation to find the least and greates percent of incumbent likely to vote.
So, ║x - p║ = 3%
⇒ x - p = 3 % or - (x - p) = 3 %
Since p = 56 %,
x - p = 3%
x - 56 % = 3 %
x = 3% + 56 %
x = 59 %
Also -(x - p) = 3%
x - p = -3%
x - 56 % = -3%
x = 56 % - 3 %
x = 53 %
So, the least percent of voters for the incumbent is 53 % and the greatest percent of voters for the incumbent is 59 %
The absolute value equation that represents this situation is:
Part A :
- Let x represent the number of voters and p represent the percentage determined by the poll.
- Since we have a 3 % margin error, we have
x - p = ± 3%.
So, ║x - p║ = 3%
So, ║x - p║ = 3%
⇒ x - p = 3 % or - (x - p) = 3 %
Since p = 56 %,
- x - p = 3%
- x - 56 % = 3 %
- x = 3% + 56 %
- x = 59 %
Also -(x - p) = 3%
- x - p = -3%
- x - 56 % = -3%
- x = 56 % - 3 %
- x = 53 %
The absolute value equation that represents this situation shows that the least percent of voters for the incumbent is 53 % and the greatest percent of voters for the incumbent is 59 %.
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