25/50 * 16/32
1/2 * 1/2
= 1/4
Answer:
below
Step-by-step explanation:
n = 30
cos 2*30 = cos 60 = 1/2
sin 30 = 1/2
2m = 30
m=15
Answer:
See below.
Step-by-step explanation:
h(x)=4x-4
h(-3)=4x-4
4(-3)-4
-12-4
-16
-hope it helps
Answer:
Charlie did not use any randomization; he took a convenience sample.
Step-by-step explanation:
The first question we need ask is whether his classmates make up the population of the city? Or does it mean that his classmate will give unbiased representation of the entire city? Because we are certain there are many other schools within the city of interest. Less assume he can do that, what will happen to all other schools? These are many other factors rendered his choice of sampling inappropriate for this study.
Therefore, the process is not random but convenience sample, even though they might give information about their various household sizes, it might not give the true picture of the city he is trying to investigate.
The best approach should have been a probability sampling techniques, preferably a systematic random sampling approach. If he has followed this process of sample selection, it will give a more reliable and well representative sample to determine the households size in the city of his interest.
The answer to that one would be D.
The answer is y>2x+2 and y<x+1; (-3, 1)
