Answer:
The 90% confidence interval for the percentage of votes that the incumbent has received in this election is (0.499, 0.581).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
90% confidence level
So , z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 90% confidence interval for the percentage of votes that the incumbent has received in this election is (0.499, 0.581).
Answer:
A and c
Step-by-step explanation:
Both a and c appear to be correct
Answer:
3 and 5/18
Step-by-step explanation:
lets make this easier by making them both ?/18 5 and 1/2 will become 99/18 and 4/9 will become 8/18 if every day he eat 8 of the 99 for 5 days we multiply the 8 by the 5 and thats 40, next we subtract 99 and 40, and thats 59/18 now lets divide our 59 by 18 so we can see how many whole numbers we have and that would be 3 and 5/18 so the answer is he has 3 and 5/18 left
The first one is false! An exponent must be greater than 1 to show exponential growth. The next 3 are TRUE! From 0 to 1, the exponent will show decay. An exponential function make some sort of parabola shape and NOT a straight line. And for y=2x, just plug in your given points (x,y) so: 6=2(3) which means 6=6, and that is true
Answer:
150 pages
Step-by-step explanation:
want to read 2,000 pages
already read 1,250 pages
Number of pages left to read
= 2000-1250
= 750
Rest of the reading spread over 5 weeks
wants to read same number of pages each week
Number of pages that need to be read each week over 5 weeks
= Number of pages left to read / total number of weeks
=750 / 5
= 150
He will need to read 150 pages a week.