Answer:
By knowing the standard deviation, one gets the idea of how the value is scattered or dispersed about the mean.
Step-by-step explanation:
Let us first define standard deviation.
As it is known that the standard deviation is a measure of dispersion which express the spread of observation in terms of the average of deviations of observations from some central values.
Measure of dispersion gives us an idea about homogeneity or heterogeneity of the distribution.
Standard deviation is supposed almost an ideal measure of dispersion except the general nature of extracting the square root.
Thus for the given question, if we want to compare the two different groups of students whose mean score is 85. Here the standard deviation for both the groups interprets an idea about how the individual score for each group scattered or varied about the mean score i.e. 85.
1st find total profit by subtracting the cost from the total revenue:
135,000 - 75,000 = $60,000 profit
Now divide the profit by the total revenue:
60,000 / 135,000 = 0.444 = 44.4% = 44% profit
Answer:
30
Step-by-step explanation:
Well I think that this is a line, and so the angle is 180. The other line is 90 which is half of 180. It leaves 90 left. then all you have to do is solve the equation 3x=90 (x+2x=3, 9-9=0) 90 divided by 3 is 30.
Hi there!
An easy strategy to compare fractions is to get a common denominator in both. In this case we could come up with the common denominator of 24 by multiplying 2/6 * 4 and 5/8 * 3.
2/6 * 4 and 5/8 * 3 <--- Equation.
8/24 and 15/24 <--- Simplified from step 1.
And now it's easy to compare!
Answer: x = 103
Step-by-step explanation:
this is a 90 degree angle indicated by the box in the corner of the angle.
90 degree angles total 90 degrees.
X - 15 + 2 = 90
move the numbers to the other side of the equal sign to isolate the X
by doing the opposite
x = 90 + 15 -2
x = 103
check your work, X - 15 + 2 = 90
103 - 15 + 2 = 90
answer is correct