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Stat 200 Psu Final Exam Questions And Answers Latest Update $15.99   Add to cart

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Stat 200 Psu Final Exam Questions And Answers Latest Update

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Stat 200 Psu Final Exam Questions And Answers Latest Update

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  • October 24, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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Solution 2024/2025
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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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