STATISTICS AND PROBABILITY- quarter
Flashcard
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
The number of avocados produced by an avocado tree each year is a continuous variable.
Back
False - The number of avocados is a discrete variable because it can only take on whole number values.
2.
FLASHCARD QUESTION
Front
Which of the following is NOT a continuous variable? A person’s height each year, A person’s weight on each birthday, Number of Cars finished in a factory each day, The volume of water in a swimming pool.
Back
Number of Cars finished in a factory each day - This is a discrete variable.
3.
FLASHCARD QUESTION
Front
What part of a normal curve is extended indefinitely both directions along the horizontal axis, approaching but never touching it?
Back
Tail - The tails of the normal distribution extend indefinitely.
4.
FLASHCARD QUESTION
Front
If two balls are drawn in succession without replacement from an urn containing 5 red balls and 6 blue balls, how many outcomes are possible if the random variable represents the number of blue balls?
Back
4 - The possible outcomes are 0, 1, or 2 blue balls.
5.
FLASHCARD QUESTION
Front
Identify the random sampling method: You wish to make a comparison about the gender differences in Mathematics performance. You divide the population into two groups, male and female, and randomly pick respondents from each gender.
Back
Stratified random sampling - This method involves dividing the population into subgroups and sampling from each.
6.
FLASHCARD QUESTION
Front
Define a continuous variable.
Back
A continuous variable is a variable that can take on an infinite number of values within a given range.
7.
FLASHCARD QUESTION
Front
Define a discrete variable.
Back
A discrete variable is a variable that can take on a finite number of values, often counted in whole numbers.
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