Answer:
Step-by-step explanation:
The area of a triangle can be found by multiplying the base and the height, and dividing the product by 2.
So, 10*8=80
80/2=40 in^2
Then, the triangle on the left:
10*12=120
120/2=60 in^2
Add up the areas
40 in^2+60 in^2=100 in^2
Answer with Step-by-step explanation:
Since we have given
n = 16
a) Describe the sampling distribution for the sample mean.
The sampling distribution of the mean is the population's mean from where the items are sampled.
It would be
b. What is the standard error?
c. For 90% confidence, what is the margin of error?
Degrees of freedom = v - 1= 16-1 = 15
Using t-table, 1.753 cuts 5% level of significance in each tail.
so, Margin of error would be
d. Based on the sample results, create the 90% confidence interval and interpret.
So, 90% confidence interval would be
(103.86,116.136)
Answer:
Isosceles right
Step-by-step explanation:
It's a right triangle because one of the angles is 90 degrees
It's isosceles because two sides are 5.57
15/10 which equals 1 5/10 which equals 1 1/2