Unit 2-1, 2-2 Test Review
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the definition of Mean in statistics?
Back
The Mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.
2.
FLASHCARD QUESTION
Front
How do you calculate the Interquartile Range (IQR)?
Back
The Interquartile Range (IQR) is calculated by subtracting the first quartile (Q1) from the third quartile (Q3). IQR = Q3 - Q1.
3.
FLASHCARD QUESTION
Front
What is Relative Frequency?
Back
Relative Frequency is the ratio of the number of times an event occurs to the total number of trials or observations.
4.
FLASHCARD QUESTION
Front
How do you find the total number of people who chose a specific option?
Back
To find the total number of people who chose a specific option, sum the counts of all options that include that choice.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating the Mean of a data set?
Back
Mean = (Sum of all data values) / (Number of data values).
6.
FLASHCARD QUESTION
Front
What does it mean if a data set has a high interquartile range?
Back
A high interquartile range indicates a wide spread of the middle 50% of the data, suggesting greater variability.
7.
FLASHCARD QUESTION
Front
How do you interpret a relative frequency of about 44%?
Back
A relative frequency of about 44% means that approximately 44 out of every 100 observations fall into that category.
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