Question

The data below shows the age of twenty people
when they got their driver's licenses.
18, 19, 18, 18, 20, 23, 18, 18, 20, 20, 19, 27, 18,
19, 19, 19, 19, 18, 22, 18.
(a) Identify any clusters or gaps.
(b) Identify any outlines.
(c) What is the range of the data?
(d) Find the mean, median and mode.
Adina​

Answer 1

Answer:

Explanation:

a) no there are no clusters or gaps between them

b) no there are no outlines

c) range=maximum value-minimum value

=27-18

=9

d) mean=sum of observations/total observations

=18+19+18+18+20+23+18+18+20+20+19+27+18+19+19+19+19+18+22+18/20

=19.5

mean of the data 19.5

median

arranging the data in ascending order we get

18,18,18,18,18,18,18,18,19,19,19,19,19,19,20,20,20,22,27

n=20 n is even

so formula for median when n is even is

(n/2)th+(n/2)th+1/2

=(20/2)th+(20/2)th+1/2

=10+10+1/2

=10+11/2

=21/2

=10.5

mode is the highest occuring

value in a given data so in this data mode will be 18