Final Study Guide

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the range of a set of scores?
Back
The range is the difference between the highest and lowest scores in a set. For example, if the highest score is 193 and the lowest is 127, the range is 193 - 127 = 66.
2.
FLASHCARD QUESTION
Front
How do you calculate the Z-score?
Back
The Z-score is calculated using the formula: Z = (x - mean) / standard deviation. For example, if the mean is 22, standard deviation is 3.1, and x is 29, then Z = (29 - 22) / 3.1 = 2.26.
3.
FLASHCARD QUESTION
Front
What is a stratified sample?
Back
A stratified sample is a sampling method where the population is divided into subgroups (strata) that share similar characteristics, and random samples are taken from each stratum.
4.
FLASHCARD QUESTION
Front
List the different types of sampling methods.
Back
The different types of sampling methods include: random sampling, stratified sampling, systematic sampling, cluster sampling, and convenience sampling.
5.
FLASHCARD QUESTION
Front
What are the two branches of statistics?
Back
The two branches of statistics are inferential statistics and descriptive statistics.
6.
FLASHCARD QUESTION
Front
Define inferential statistics.
Back
Inferential statistics involves making predictions or inferences about a population based on a sample of data.
7.
FLASHCARD QUESTION
Front
Define descriptive statistics.
Back
Descriptive statistics involves summarizing and organizing data to describe its main features.
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