Answer:
0.89 as a fraction would equal:
0.234 as a fraction would equal:
0.6 as a fraction would equal:
you burn 10 calories each minute you jog.What integer represents the change in your calories after you jog for 20 mins
1 answer:
The total calories burnt in 20 minutes are 200
Step-by-step explanation:
We have to do simple multiplication to find the number of calories burnt.
Given
Number of calories burnt in one minute = c = 10
Time = t = 20 min
So the total number of calories burnt in 20 minutes will be:
Hence,
The total calories burnt in 20 minutes are 200
Keywords: Integers, unit
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Answer:
The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is between 49.34% and 60.66%, which means that we are 99% sure that the true percentage of US adult Twitter users who get some news is in this interval.
Step-by-step explanation:
Confidence interval:
A confidence interval has the following format:
In which M is the sample mean, z is related to the confidence level and s is the standard error.
55% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard error for this estimate was 2.2%.
This means that
99% confidence level
So , z is the value of Z that has a pvalue of
, so
.
Lower bound of the interval:
Upper bound:
The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is between 49.34% and 60.66%, which means that we are 99% sure that the true percentage of US adult Twitter users who get some news is in this interval.