Question

In a study of age and systolic blood pressure of five randomly selected subjects, a researcher reported the following data

Subject #	Age, x	Pressure, y
10	6	5
12	8	9
9	3	12
15	0	8
13	2	4

Calculate the

means

median

modes

variances,

standard deviations

Answer 1

putting both of the data in ascending order:

from Age:

mean =3.800

median =middle value =3

mode =does not exist , as each value appear with single frequency

variance=10.20

standard deviation =3.194

for Pressure:

mean =7.6

median =middle value =8

mode =does not exist , as each value appear with single frequency

variance=10.30

standard deviation =3.209