Answer:
Step-by-step explanation:
You'll need to share the set of data if you want a precise answer.
But here's how to find the IQR:
1. Arrange the data in ascending (increasing) order
2. Identify the median. This divides the list of data into two parts.
3. Find Q1 and Q3. They are the medians of these two parts.
4 Subtract Q1 from Q3. The result is the IQR that you wanted.
9514 1404 393
Answer:
![\left[\begin{array}{cc}12&1\\-4&1\\-11&28\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D12%261%5C%5C-4%261%5C%5C-11%2628%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
The element at row i column j in the product is the dot-product of row i of the first matrix and column j of the second matrix. For example, row 2 column 1 of the product is ...
(row 2) · (column 1)
[3, -2, 4] · [2, 7, 1] = (3)(2) +(-2)(7) +(4)(1) = 6 -14 +4 = -4
The attachment shows the complete product matrix. It is convenient to let a spreadsheet or graphing calculator do the tedious repetitive arithmetic.
the ratio of the number of kids is 4:7
that means for every 7 kids we have 4 adults
7 kids ---- 4 adults
the difference is 3
we dived the difference of the kids between the difference of the ratio
150/3 = 50
the number we obtained must be multiply by the ratio of each part
7(50) = 350 number of kids
4(50)=200 number of adults
there are 200 adults at the fun fair
Just plug in your x and solve like normal
-4< 4(1) - 8 < 12
-4< -4 < 12
now solve both sides by moving the -4 out by adding + 4 to all sides
0 < x < 16
when read this says 0 is less than X and X is less than positive 16.
the other 3 are solved the same.
