Standard deviation = √(n * p * q)
You are given n and p
q = 1 - p
q = 1 -0.2 = 0.8
Standard deviation = √(21 * 0.2 * 0.8)
=√3.36 = 1.83
The answer is A.
A line of symmetry would separate a shape to make multiple shapes that are exactly the same.
The answer is C.2
Answer:
g*2+4 I think lol I'm not good at math
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hope this helps! ❤ from peachimin