Question

A car dealership tracked the number of cars sold each month.Cars sold10090ВО70GONumber of cars5040302010November December JanuaryAprilMayJuneFebruary MarchMonthWhat is the mean of this data set:What is the median of this data set:

Answer 1

we have that

Numbers of cars sold

60,20,20,40,90,40,70,60

Part a) Find the mean

The means is equal to

(60+20+20+40+90+40+70+60)/8

=400/8

mean=50

Part b) Find the median

Remember that

The Median is the "middle" of a sorted list of numbers

so

Order the data set ftrom least to greater

20,20,40,40,60,60,70,90

the middle is

20,20,40,40,60,60,70,90

median=(40+60)/2

median=50

Part c) Find the mode

remember that

The number which appears most often in a set of numbers is the mode

in this data set

20,20,40,40,60,60,70,90

so

mode=20,40,60

Part d) Find the range

we have

minimum value=20

maximum value=90

range=90-20

range=70