Statistics Summative Bonus Point Flashcardizz
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the mean of the data set: 35, 41, 19, 27, 30?
Back
30.4
2.
FLASHCARD QUESTION
Front
What type of sampling method is used when Corey surveys every 15th student entering the school?
Back
Systematic Random Sample
3.
FLASHCARD QUESTION
Front
Are Mrs. Welborn's findings about the average reading level valid or invalid if she only asked her own students?
Back
Invalid since her sample was a convenience sample and contains bias.
4.
FLASHCARD QUESTION
Front
What is the interquartile range of a data set if the answer is 10?
Back
10
5.
FLASHCARD QUESTION
Front
If 15 students prefer cotton candy, 11 prefer chocolate, 25 prefer sour candy, and 9 prefer gum, how many students will like gum if there are 1140 students at the school?
Back
171
6.
FLASHCARD QUESTION
Front
Define 'mean' in statistics.
Back
The mean is the average of a data set, calculated by adding all the numbers and dividing by the count of numbers.
7.
FLASHCARD QUESTION
Front
What is a 'convenience sample'?
Back
A convenience sample is a type of non-probability sampling where the sample is taken from a group that is easy to reach.
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