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Reviewing chapters 1-5 Flashcards | StudBud
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Reviewing chapters 1-5
Reviewing chapters 1-5
10 terms
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Flashcards
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Questions
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Answers
1
Which statement is true about independent events?
One event doesn’t affect the other
They always happen together
2
Which of the following is true about a continious probability distribution?
The total area under the curve equals 1
It only has whole number outcomes
3
What is the key difference between a histogram & a bay chart?
Histograms use bars for intervals; bar charts for categories
Bar charts use curves instead of bars
4
Which of the following is an example of a rano-level measurement?
Temperature in F°
Weight in Kilograms
5
What does a standard deviation tell you?
The most frequent data point
How spread out data is from the mean
6
Which measure of central tendency is most affected by extreme values (outliners)?
Mode
Mean
7
What can a boxplot show that a histogram cannot?
Outliners & the median clearly
Frequency of every individual value
8
Which of the following best describes inferential statistics?
Inferential statistics make predictions about a population using a sample.
Inferential statistics list all the data points without any analysis.
9
What is the difference between a population & a sample instatistics?
A population is the whole group; a sample is part of it.
A population is one person, and a sample is everyone in the world.
10
What is the addition rule for mutually exclusive events A & B?
P(A or B)=P(A)xP(B)
P(A or B)= P(A)+P(B)
