That's for the equation I got from the picture
Each piece is 7 and 1/3 feet long (7 feet 4 inches)
Answer:
96/45
Step-by-step explanation:
56
847748
38303[
Answer:
a. Fred's margin of error is larger than Ted's.
Step-by-step explanation:
Margin of error of a confidence interval:

In which z is related to the confidence level(the higher the confidence level the larger the value of z)
is the standard deviation of the population and n is the size of the sample.
From this, we have that:
A higher confidence level leads to a larger margin of error.
A larger sample size leads to a smaller margin of error.
In this question:
Same confidence level.
Fred's sample is smaller, so his margin of error will be larger.
The correct answer is given by option a.
Answer:

Step-by-step explanation:
first multiply both side by 2 to get rid of the fraction




