If the data set represents the number of rings each person is wearing, being: 0,2,4,0,2,3,2,8,6, the interquartile range of the data is 2. Being, 4 as the Q1, 3 as the Q2 or median, and 6 as the Q3. Where the formula of getting the interquartile range is IQR= Q1-Q2.
19/40 as a fraction and decimal it is 0.475
Answer:
The equation of required line is: 
Step-by-step explanation:
We need to write equation in the form Ax+By+C=0 of the line parallel to
and through the point (-2,3)
First we need to find slope and y-intercept of the required line.
Using equation of line
to find slope.
Since the given line and required lines are parallel there slope is same.
Writing equation in slope intercept form:
where m is slope.

So, the slope m = 5/8
The slope of required line is 
Now finding y-intercept using slope
and point(-2,3)

So, the equation of required line having slope
and y-intercept 

So, The equation of required line is: 
Step-by-step explanation:
A = pi × r²
A = pi × 13²
A = 530.93 km²