Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest tenth.
Х
Х
X-X
(X-X²
1.900
= 466.2
The mean is
2.35
= -398.8 = 159,041.4
The variance is 99,667.2
3.500
= 66.2
The standard deviation is
4.300
= -133.8
=
n =
ΣΧ=
x=
EX - x)2 = 398,668.6
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answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

just find the gcf and solve the gcf's until you get each answer i have a really good feeling somethings missing xd (like the dimensions of the fence) *cough *cough *hint *hint

step-by-step explanation: