Answer: 0.1
Step-by-step explanation:
Given : A Houston department store sampled 80 items sold in January and found that 8 of the items were returned.
In other words, sample size : <em>n</em>=1040
Number of items returned : <em>x</em>= 8
Let <em>p</em> be the proportion of items returned for the population of sales transactions at the Houston store.
As per sample , the sample proportion of items returned for the population of sales transactions at the Houston store is :

As we know that , <em>the sample proportion is the best estimate of the population proportion.</em>
Therefore,a point estimate of the proportion of items returned for the population of sales transactions at the Houston store is 0.1.
Answer:
b = 7
Step-by-step explanation:
-144 = 8(3-3b)
-18 = 3-3b
-21 = -3b
b = 7
Answer:
depends on the radius
Step-by-step explanation:
To find the area of a circle, use the formula A = π r²
To find the area, substitute r for the radius of your circle
For example:
If I had a circle with a radius of 2,
A = π 2²
A≈12.57
Hope this helps
-1, -8
0, -9
1, -10
2, -11
Hope that helps!