Answer:
0.25
Step-by-step explanation:
Since, in the question , it is not mentioned that two balls of any specific colour,
the probability of getting two balls is: ![\frac{2}{8}\\= \frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B8%7D%5C%5C%3D%20%5Cfrac%7B1%7D%7B4%7D)
<h3>
Answer: 3</h3>
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Work Shown:
15n+30 = 75
15n+30-30 = 75-30 ... subtract 30 from both sides
15n = 45
15n/15 = 45/15 .... divide both sides by 15
n = 3
Answer:
Sorry I don't know the answer but you can try to do it................
The answer is C: difference of cubes
proof
x^6-27=(x^2)^3 - 3^3, because (x^2)^3 =x^2*3=x^6
Answer: Simple random sampling
Step-by-step explanation:
Given: A market researcher obtains a list of all streets in a town. She randomly samples 10 street names from the list, and then administers survey questions to every family living on those 10 streets.
Since she randomly samples street names , therefore the type of sampling is simple random sampling.
- A simple random sample is a sample that is a subset of the population the researcher surveyed selected in a way such that all the individuals in the population has an equal chance to be selected.