Answer:

Step-by-step explanation:
From the question we are told that:
Sample mean 1 
Sample mean 1 
Sample standard deviation 1 
Sample standard deviation 1 
Generally the equation for Point estimate is mathematically given by



Answer:
12 feet
Step-by-step explanation:
Draw a diagram (see picture below). The tree and its shadow is one triangle, the man and its shadow is another triangle. We assume both are right triangles because people and trees stand vertical.
Create a proportion to solve. Put the missing value in a numerator.
Tree height / Tree shadow = Man height / Man shadow

Solve using cross multiplication. Multiply x by 4. Multiply 6 by 8.
4x = 48 Divide both sides by 4 to isolate x.
x = 12 Height of tree
The tree is 12 feet tall.
Answer:
Step-by-step explanation:
Volume of sphere = 4/3 *pi * r^3
= 4/3 * 3.14 * 52
= 523.33
Answer:
k= -2.5
Step-by-step explanation:
Answer: 1.118
Step-by-step explanation:
Factor x Factor = Product
0.26(Factor) x 4.3(Factor) = 1.118(Product)
To check your work, divide the product by one of the factors and the result you should get is the other factor.
1.118(Product) ÷ 4.3(Factor) = 0.26(Factor)
-or-
1.118(Product) ÷ 0.26(Factor) = 4.3(Factor)
To show work:
.26
<u> x4.3</u>
.078
<u>+1.040</u>
1.118