Unit 5 Review: Exploratory Data Analysis

Flashcard
•
Mathematics
•
12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the maximum value in a data set?
Back
The maximum value is the largest number in a data set.
2.
FLASHCARD QUESTION
Front
True or False: All samples lead to a good prediction about an entire population.
Back
False. Not all samples are representative of the population.
3.
FLASHCARD QUESTION
Front
How do you find the median of a data set?
Back
To find the median, arrange the data in ascending order and identify the middle value.
4.
FLASHCARD QUESTION
Front
What is the mean of a data set?
Back
The mean is the average of all the numbers in a data set, calculated by dividing the sum of the values by the number of values.
5.
FLASHCARD QUESTION
Front
What is standard deviation?
Back
Standard deviation measures the amount of variation or dispersion in a set of values.
6.
FLASHCARD QUESTION
Front
How do you calculate the mean of the following data set: 28, 18, 19, 18, 17?
Back
Mean = (28 + 18 + 19 + 18 + 17) / 5 = 20.
7.
FLASHCARD QUESTION
Front
What is the formula for standard deviation?
Back
Standard deviation (σ) = √(Σ(xi - μ)² / N), where μ is the mean and N is the number of values.
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