D) 8.7lbs
Subtract $2.50 from the total cost, because that's a fixed number, then do more math and boom, just like magic, it's solved.
231
/\
3X77
/\
11X7
3*7*11 is prime factorization of 231.
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Answer:
-0.5 goes between -2 and 1
0.5 goes between -2 and 1
-4.5 goes below -2
-2.5 goes below -2
1.5 goes above 1
4 goes above 1
Answer:
С. .
This method of sampling is unbiased.
Explanations:
A method of sampling is referred to as bias when there is an imbalance in the sampling probability among members of the total population.
In this example, we have a survey sampling that involves anonymous members, there's no way the sampling probability can be lowered for some members than others because members of the whole population are unknown.
This is a fair sampling method and it is unbiased.
