Answer:
The first option
Step-by-step explanation:
It is biased as her friends are all more likely to go considering how involved she is with it.
1. Perpendicular Transverse Theorem
2. a=30 and b=60
44/77 = 4/7 because its divided by 11. 4x11 is 44 and 4x7 is 77. Hope it helps!
Answer:
The 99% confidence interval would be given by (0.054;0.154)
. So we are confident at 99% that the true proportion of people that they did work at home at least once per week is between 0.054 and 0.154
Step-by-step explanation:
For this case we can estimate the population proportion of people that they did work at home at least once per week with this formula:
We need to find the critical value using the normal standard distribution the z distribution. Since our condifence interval is at 99%, our significance level would be given by and . And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 99% confidence interval would be given by (0.054;0.154)
. So we are confident at 99% that the true proportion of people that they did work at home at least once per week is between 0.054 and 0.154
The area = L*L=9 or 3*3=9
Which means that each sides length equals 3 if it is a perfect square.