I would say B to your answer. # ask my brother in high school
~JZ
Answer:
yall rly need to start attching pictures
Answer and Step-by-step explanation:
Variance is the measurement of the spread bewteen the numbers of the data set and can be calculated by the formula:
σ² = ∑(x - ⁻x)² / n
1) With the data, find its mean (⁻x) by adding all the values and dividing the sum by total number of elements the data has;
2) Subtract each value of the data to the mean;
3) Square the result of the subtractions;
4) Add the squares;
5) Divide the sum by the total number of elements of the set;
6) The result is the Variance (σ²);
Standard Deviation is the measure of how far the values of the data set are from the mean and it is the square root of Variance:
σ = 
So, to calculate standard deviation, you just take the square root of the variance.
Answer:
The answer is 4!!
Step-by-step explanation:
A Passport picture is normally in the rectangular formation meaning, if the width of the top of the passport picture is 3, then the bottom is 3 as well.
That lets you figure out, since perimeter is all sides added together, 3+3 = 6 so 6 is both widths combine.
With this 6 in mind, if the perimeter of the entire passport is 14cm, and you have 6cm as both widths combine, now you need to find the length of this object.
Now here, since 6 is both widths combined, simply here you do 14cm - 6cm which is 8.
8 is the total length, meaning both sides added. See now that is the answer if you are finding out the total length (which is ha not the question).
Since you are trying to find only 1 side of the length, since there are 2 sides, you do 8 divided by 2, and BAM you get which is actually your answer as well!
PS. I don't even know if this is right though it should be right, use a calculator if you are doubtful :D
Happy New year!
