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3.07 Practice (Normal Distribution - Empirical Rule)
Flashcard
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the total sum of the percentages under the standard normal distribution curve?
Back
100%
2.
FLASHCARD QUESTION
Front
What shape is a normal distribution curve?
Back
Bell curve
3.
FLASHCARD QUESTION
Front
If the mean of a normal distribution is 38 and the standard deviation is 4, how many members are younger than 34 in a group of 500?
Back
80
4.
FLASHCARD QUESTION
Front
68% of all tires will have a life between __________ km and __________ km if the mean life is 30,000 km and the standard deviation is 2000 km.
Back
28,000 km and 32,000 km.
5.
FLASHCARD QUESTION
Front
What are the mean and standard deviation if 95% of students weigh between 62 kg and 90 kg?
Back
Mean = 76 kg, S.D. = 7 kg
6.
FLASHCARD QUESTION
Front
What is the Empirical Rule in relation to normal distribution?
Back
68% of data falls within 1 standard deviation, 95% within 2, and 99.7% within 3.
7.
FLASHCARD QUESTION
Front
Define standard deviation in the context of a normal distribution.
Back
A measure of the amount of variation or dispersion of a set of values.
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