Answer:
B. The value is a parameter because the career at-bats of a baseball player are a population.
Step-by-step explanation:
The hitter had a career batting average of 0.366.
This value comes from information about the population of every time he has ever gone up to bat. Therefore, it is a parameter.
If on the other hand, we take the batting average of 5 games, the 5 games will be a sample and the batting average will be a statistic.
Answer: b. finding all studies published on a topic, calculating the effect size for each of those studies, and averaging the effect sizes together to find the average size of the effect across all studies.
Step-by-step explanation:
Answer:
not enogh points
Step-by-step explanation:
X+2y=8
2y=8-x |:2

y=ax+b ==>

We calculate the zeros of functions (0,b)
(0,b) = (0,4)
We have solution:
x=0, y=4