Mathematics
20.03.2022 02:08
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In order to use the t distribution, we must know the population standard deviation.

In order to use the t distribution, we must know the population standard deviation.
true or false?
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josh5527
josh5527
4,4(96 marks)
I'd use FOIL so first is x^2 then outer is 7x and inner is 2x and then last is 14. Then you get x^2+9x+14

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