From a pack of 9 cards numbered 1-9, three cards are drawn at random and laid on a table from left to right.

what is the probability that the digits are drawn in descending order?

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

is only a line? i think so