Answer:
Answer: The mean increases by 3
Step-by-step explanation:
The original data set is
{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}
The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.
The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77
If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80
So in summary so far
old mean = M = 77
new mean = N = 80
The difference in values is N-M = 80-77 = 3
So that's why the mean increases by 3
Answer:
wha?
Step-by-step explanation:
Answer:
P = 41%
Step-by-step explanation:
We know that of means multiply and is means equals
P * 3400 = 1394
Divide each side by 3400
P 3400/3400 = 1394/3400
P =.41
Multiply by 100% to put in percent form
P = 41%
Remember the formula for the perimeter of a rectangle is (2L + 2W).
Since we have our width, 56, we need to double it.
56 x 2 = 112.
Now we are left with this equation:
246 = 112 + 2L
To solve for this, we need to get 2L by itself and simplify.
Subtract 112 from both sides (what you do to one side of an equation you must do to the other).
246 - 112 = 134
112 - 112 = 0
Our equation is now:
2L = 134
L is being multiplied by 2.
To solve for L, we need to perform the opposite order of equations.
The opposite of multiplying is dividing.
Divide both sides by 2.
2L / 2 = L
134 / 2 = 67
You are left with:
L = 67
Your length is 67 yards.
I hope this helps!
I rather solve a quadratic using factoring
