Answer:
And we can use the normal standard distribution or excel to find this probability and we got:
Step-by-step explanation:
We define the parameter as the proportion of students at a college who study abroad and this value is known 
, we select a sample size of n =40 and we are interested in the probability associated to the sample proportion, but we know that the distirbution for the sample proportion is given by:
And the paramters for this case are:
We want to find the following probability:
For this case since we know the distribution for the sample proportion we can use the z score formula given by:
Replacing the info given we got:
And we can use the normal standard distribution or excel to find this probability and we got:
1. true
2. false
3. true
4. false
5. true
Answer:
Last year the cost was $28.
This year the cost is $36.
$36 - $28 = $8
Percent of increase = amount of increase ÷ original amount
$8/$28 = $0.286
$0.286 · 100 = 28.6%
There has been a 28.6% of change in the cost.
A right triangular prism is a solid that has faces that consist of 2 equilateral triangles and 3 congruent rectangles. It is also described to have two parallel faces and 3 other faces that belong to the same place (and are not parallel to the parallel pair of faces).
