Answer:
A lurking variable is a variable that has an important effect on the relationship among the variables in the study, but is not one of the explanatory variables studied. Two variables are confounded when their effects on a response variable cannot be distinguished from each other.
Answer:
C
Step-by-step explanation:
There is a positive correlation, as hours spent gets bigger the test score gets bigger with some outliers
Answer:
B) Hundreds
Step-by-step explanation:
<em>2380 ÷ 10 = 238</em>
The number 238 is in the hundreds as the first digit is in the hundreds. You can tell because you say "two hundred."
Hope this helps
DF is half of AC, so DF=25
