Memorize the definition of standard deviation: the sd is the square root of the average of the squared deviations of the mean. Wow. Let's do it.
Step 1. First we need the mean. That's easy. Add them up and divide by the count. Check if you get 16.88/5 = 2.81333.
Step 2. Now we're going to subtract this from each of the values, and square the result. Don't worry about negative signs, the squaring will get rid of those. Example for the first number:
(1 - 2.813)^2 = 3.29
The list of numbers I get is (rounded, in reality round as little as possible):
3.29, 2.60, 1.41, 2.35, 1.66, 6.18
Step 3: Add them all up. I get 17.49.
Step 4: Divide by the count of numbers. 17.49/6 = 2.91
Step 5: Take the square root from this result. SQRT(2.91) = 1.707305
TIP: Use excel to do all these steps, then run the set of numbers through Excel's built-in sd function (called STDEV.P) and see that you get the same result!
Answer:
x intercept = 26
y intercept = 6.5
Step-by-step explanation:
n/a
Answer:
the parallel lines match up, and the angles are the same
Step-by-step explanation:
Let x represent the amount of games played.
When x is used, it need to be multiplied by the price ($35).
x(35) = cost in $
Hope this helped :)
Answer:
x≥2
Step-by-step explanation:
First, write out the equation as you have it:

Then, add
to both sides:

Next, subtract
from both sides:

Finally, divide both sides by
:

or

Therefore: the answer to this inequality/equation is: x≥2