Exam (elaborations)
Stat 200 Psu Final Exam Questions And Answers Latest Update
- Course
- STAT 200
- Institution
- Pennsylvania State University - All Campuses
Stat 200 Psu Final Exam Questions And Answers Latest Update
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Solution 2024/2025Pepper
Stat 200 Psu Final Exam Questions And
Answers Latest Update
observational study ANS✔✔ participants are simply observed and measured
in this type of study, can NOT draw cause and effect conclusions from this
randomized experiment ANS✔✔ a study where treatments are randomly
assigned to participants, it IS possible to draw cause and effect conclusions
from this
5 number summary ANS✔✔ min, Q1, median, Q3, max
skewed ANS✔✔ values are more spread out on one side of the center than
the other
right skewed ANS✔✔ numbers on the left of the number line are more than
the numbers on the right side
left skewed ANS✔✔ numbers on the right side are are more than the
numbers on the left side
x bar ANS✔✔ mean of a sample
variability ANS✔✔ a measure of how much data values differ from one
another, or how widely the data values are spread out around the center
, Solution 2024/2025
Pepper
standard deviation ANS✔✔ a numerical value that represents variability,
approximately the average distance that values will fall from the mean
- calculator for this
.05 ANS✔✔ a result is statistically significant when the p-value is less than
or equal to...
risk ANS✔✔ term used to describe the probability of an undesirable outcome
occurring, typically expressed as a percentage
ex: the risk of CHD is
total CHD/total of all
ex: risk of CHD with low anger
total low CHD/total low
relative risk ANS✔✔ the ratio of the risks in two different categories of an
explanatory variable
ex: relative risk of CHD for high anger compared to low anger
(high CHD/high total)/ (low CHD/low total)
odds ANS✔✔ compare the chance of an event happening to the chance of it
not happening from a group
ex: odds of CHD for those with high anger
high CHD to high no CHD
bias ANS✔✔ occurs when the method used to get value for the dataset
consistently produces values that are too high or too low.
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