Random pages were chosen from a variety of childrens books and the number of words on each page was recorded. find the standard deviation of the words per page

sd=    with S the sum from i=1 to N

Step-by-step explanation:

the standard deviation is the average separation between the data provided

in this case the standard deviation of the words per page is

sd=

with i= each page number,  N= total number of pages,  

M= average= ∑ni / N ,  ∑since 1 to N

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.