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BuzzFeed / Flickr: franklinheijnen
Correct!Wrong!Mode is the value that appears most often in a set of data, so you can have more than one mode. For example in the set of numbers 1, 1, 2, 2, 3, 4, 5 both 1 and 2 would be the mode.
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Correct!Wrong!
5 multiplied by 3 is 15.
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BuzzFeed / Flickr: calsidyrose / Creative Commons
Correct!Wrong!
Add c to both sides, then subtract a to get c = b - a.
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Correct!Wrong!
The median is the one in the middle when you arrange a set of numbers in order. In this case there are eight in total, so the median is half way between the 4th and 5th numbers in the set.
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x = 3, 4, 5, 6, 7, etc.x = 2, 3, 4, 5, 6, etc.x = 2, 1, 0, -1, -2, etc.Correct!Wrong!
≥ means greater than or equal to, so the sequence starts at 2 and goes up.
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Correct!Wrong!
Add the indices: 2 + 3 = 5.
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Weak positive correlation.Strong positive correlation.Strong negative correlation.Correct!Wrong!
I mean it's basically a straight line.
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Weak positive correlation.Weak negative correlation.No correlation.Correct!Wrong!
You couldn't draw a line to fit these points, so no correlation.
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BuzzFeed / Flickr: 54943750@N00 / Creative Commons
Correct!Wrong!
Multiplying two negative numbers makes a positive one.
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Correct!Wrong!
If the next digit down is 5 or greater, you round up. We only want one significant figure, so that gives us 5000.
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Correct!Wrong!
3 goes into 9 three times, so you have to multiply the 4 by three to get 12.
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BuzzFeed / Flickr: chadskeers / Creative Commons
Correct!Wrong!
2% is equal to 2 divided by 100, which gives you 0.02.
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Correct!Wrong!
8 goes into 40 five times and into 24 three times. There's no larger number that goes into them both.
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Correct!Wrong!
You add the indices. The trick is to remember that "b" is actually "b~1~", you just don't have to write the 1 out.
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Correct!Wrong!
There are 8 green counters out of a total of 20. 8/20 simplifies to 2/5. Ta da!
