Answer:
1. This is an observational study.
2. The explanatory variable is A. red meat consumption
3. The response variable is B. Whether or not a subject dies.
Step-by-step explanation:
1. An observational study is a type of study where the researcher would observe the effects and he would also make no attempt to change the outcome
2. The explanatory variable is also called the independent variable and in this case it is red meat consumption because it is what would be used to predict the dependent variable
3. The response variable is known as the dependent variable it is our variable of interest. It is what the researcher is trying to find out. In this case the answer is whether or not the subject dies
Answer: $49.5
Step-by-step explanation: If each song costs 0.99 cents then you multiply the number of songs you are buying by the cost. So that would be 0.99×50=49.5
Answer:
it will be 36 (B)
Step-by-step explanation:
1/2(72+55)=36
hope this help!
Answer:
C:
Step-by-step explanation:
Density = Mass/ Volume
2 = 8 / V
V = 8/2
V = 4 cubic cm
Recall that a square is just a rectangle with all sides equal.
and the area of a rectangle is just length * width.
