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15
×
Students are assigned numbers by a computer. Those numbers are then pulled out of a hat to make a sample. Is this a random sample?
Yes
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15
×
The mean of all wellspring students heights is an example of ________ .
Population Mean
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×
baam
Lose 20 points!
Oops!
×
magnet
Take 15 points!
Okay!
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fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
×
lifesaver
Give 25 points!
Oops!
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star
Double points!
Okay!
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gift
Win 25 points!
Okay!
×
baam
Lose 15 points!
Oops!
20
×
Find the median: 54, 20, 79, 53, 55, 42, 45, 39, 53, 82, 50
53
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15
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A population is _____ .
Everyone in the target group
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25
×
What populations are easier to make predictions about?
Populations where the data isnât close
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20
×
Median is a measure of ____________ .
Centre
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20
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Interquartile range is a measure of _________ .
Spread
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×
baam
Lose 15 points!
Oops!
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magnet
Take 25 points!
Okay!
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shark
Other team loses 10 points!
Okay!
×
banana
Go to last place!
Oops!
15
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If we ask a subset of the population a question it is a _______ .
Sample
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15
×
Which samples are more reliable?
Larger samples
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20
×
AS THE SAMPLE SIZE GOES UP. What happens to sample variability ?
it goes down
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25
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Make a statistical observation about variability.
any correct
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25
×
What is the best month of the year?
JULY!
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15
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If we find the mean of a subset then we have a __________
Sample Statistic
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