Descriptive Statistics Review
Flashcard
•
Mathematics
•
University
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the probability of randomly choosing an item greater than a given z-value?
Back
50% + probability
2.
FLASHCARD QUESTION
Front
What does the line at 11 represent in a distribution?
Back
The median
3.
FLASHCARD QUESTION
Front
What percentage of observations are typically within 1 standard deviation of the mean in a normal distribution?
Back
68%
4.
FLASHCARD QUESTION
Front
Which measure of central tendency is typically the largest in a skewed distribution?
Back
Mode
5.
FLASHCARD QUESTION
Front
What is the probability of randomly choosing an item less than a given z-value?
Back
50% - (probability)
6.
FLASHCARD QUESTION
Front
Define 'mean' in descriptive statistics.
Back
The average of a set of values, calculated by summing all values and dividing by the number of values.
7.
FLASHCARD QUESTION
Front
Define 'median' in descriptive statistics.
Back
The middle value in a data set when the values are arranged in ascending order.
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