CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2025 – 2026
Why are samples used to study populations?
It doesn't make sense to try to reach every person of a
population. So we use techniques to gather samples from a
given population
A group of researchers would like to determine if chewing
gum during an exam increases exam performance. They
recruit a random sample of 50 students and split them into
two equally-sized groups. One group is given gumto chew
while taking an exam, while the other group is not. The
exam scores of each participant are recorded and the group
means are compared. The exam that each participant
receives
is the same, along with the room that the exam is
administered
in and the type of gum provided. However, some students
, reported having consumed caffeine that morning, while
others did not.
Match the independent, dependent, control, and
extraneous variables in
the study with the appropriate answer.
Independent - gum chewing
dependent - exam scores
control - type of gum
extraneous - caffeine consumption
Why is it important to understand the ethical conduct of
statistical methods?
Though statistics can be powerful in communicating
the results
from empirical studies, they can just as easily mislead
individuals to believe inaccurate claims. We live in a world
where information is readily available at our fingertips. We
are bombarded with claims made every day on a variety of
platforms, from scientific journals to news articles to posts
shared on social media. In order to make responsible
decisions, it is important to have an understanding of how to
evaluate claims and how to identify reliable and
accurate sources of information.
It's important because anyone can be mislead by untrue
information. You have to make sure that the information you