There are ways of picking 2 of the 10 available positions for a 0. 8 positions remain.
There are ways of picking 3 of the 8 available positions for a 1. 5 positions remain, but we're filling all of them with 2s, and there's way of doing that.
So we have
The last expression has a more compact form in terms of the so-called multinomial coefficient,
Answer:
Only line A is a well-placed line of best fit.
Step-by-step explanation:
I did this on Plato and got it correct.
Answer:
n = 18 6/25
Step-by-step explanation:
Multiply both sides by 12.
12(38/25) = 12(n/12)
456/25 = n = 18 6/25 = 18.24
Answer:
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Boys: x
gilrs: y
From the text of the task:
Replacing x:
So there are 28 girs and 20 boys