Answer:
1. biased sample: sample not representative of the entire population
2.convenience sample: sample where representatives are easily accessible
3.unbiased sample: sample where every member of the population has an equal chance
4. self-selected sample: sample where members volunteer to take part
5. stratified sample: members are selected from the different subgroups within a population
6. systematic sample: sample members are selected through the use of a rule.
Hope this helps!!
Answer:
A
Step-by-step explanation:
The expected profit would be the sum of all the possibility multiplied. It means,
<em>"We need to multiply the profit by its possibility and add it with the product of the loss and its possibility."</em>
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This will be the expectation, or expected profit.
Let's do it:
Expected Profit = 
The correct answer is A
523.6 is the answer hope this helps!
First you need to know how many cups of powder you are going to need for the 496 cups of paint you already have

We write this as a ratio

for the 496 cups of paint you will need 99.2 cups of powder.
Continue by seeing how may grams there are in 99.2 cups

write it as a ratio and solve for x again.

now find how many vials you will need

write the ratio and solve

If each sets comes with 12 sets, write the ratio and find the number of sets you will need


you will need 98 sets for this amount of paint.
Plug it in
7(4) + 8(5) which would be 28 + 40
Answer: 68