Answer:
A. 0.0049
B. Yes
Step-by-step explanation:
Sample proportion = 0.64
N = 1000
Population proportion = 0.60
We solve for standard deviation
= √p(1-p)/n
= √0.60(1-0.60)/1000
= √0.60x0.40/1000
= √0.00024
= 0.0155
A.
The probability of sample >=0.64
Z>=0.64-0.60/0.0155
Z >= 0.04/0.0155
So z >= 2.5806
Using excel this equal to 0.0049
0.0049 is probability of sample proportion being 0.64 at least.
B.
This answer in a shows that than 60% of households in the united states income class purchased life insurance last year.
Answer:
<h2>D</h2>
Step-by-step explanation:
If pair of ratios does form a true proportion then:
Answer:
-1.2 that is the point hope this helps
Step-by-step explanation:
Answer:
55 degrees
I answered the question on AoPS and it said it was correct.
Answer:
Base ten blocks can represent values such as 1, 10, 100, and 1000.
