3:8 is the original ratio
multiple both sides by 3 to make it 3 times greater
the answer would be 9:24
hope this helps!!
Answer:
There is 95% confidence that the population proportion of people from Vermont who exercised for at least 30 minutes a day 3 days a week is between 55.9% and 74.7%.
Step-by-step explanation:
We have to answer the population proportion for Vermont.
We can only do it by a confidence interval, as we only have information from a sample.
This sample, of size n=100, has a proportion p=0.653.
The degrees of freedom are:
We will calculate a 95% confidence interval, which for df=99 has a critical value of t of t=1.984.
The margin of error can be calculated as:
Then, the upper and lower bounds of the confidence interval are:
Then, we can say that there is 95% confidence that the population proportion of people from Vermont who exercised for at least 30 minutes a day 3 days a week is between 55.9% and 74.7%.
Answer:
9.8 units
Step-by-step explanation:
distance = sqrt (x2 - x1)^2 + ( y2 - y1)^2
sqrt (-3 - (-6))^2 + (5 - 1)^2
sqrt (9)^2 + (4)^2
sqrt 81 + 16
sqrt 97
9.848857802
Answer:
Response bias
Step-by-step explanation:
Response bias means: anything in a survey that influences responses. In this situation the question is "Do you favor harsher penalties for individuals who sell guns illegally?" The person is asking a very specific question rather than allowing it to be broad. The scenario is that the surveyor wanted tot estimate the percentage of people who favor just stricter gun laws in general and not within the limits of illegally sold guns. If he were to ask "Do you favor stricter penalties for buying/selling guns?" then it would fit the guidelines of the initial estimate. hope this makes sense :)