Step-by-step explanation:
2,403/109,247 X 100
only 2.2% of Tennessee is covered in water
Answer:
No lol
Step-by-step explanation:
No
Answer:it’s 3 and 8
Step-by-step explanation:
Answer:
7 apples divided among 5 people
Step-by-step explanation:
Given
Apple shared equally
Portion of each person = 7/5
Required
A possible way that shows how the pies were shared.
Given that 7/5 is the ration of the pie to each individual (Kyle and his friends).
Provided that each individual got equal ration....
The ration can be divided into two
The numerator = 7
The denominator = 5.
The numerator shows the number of things that were shared.
Hence, 7 apples were shared.
The denominator shows the number of people involved.
Hence, 5 people were involved.
So, we can conclude that 7 apples were divided among 5 people.
From option A through D, only option B satisfied this analysis
Answer:
And rounded up we have that n=385
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Solution to the problem
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by
and
. And the critical value would be given by:
The margin of error for the proportion interval is given by this formula:
(a)
And on this case we have that
and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
We can use as an estimator for p
. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=385