Question

What is the first quartile (Q1) of the data set?

48, 40, 59, 74, 51, 45, 62, 69

A.
74

B.
65.5

C.
46.5

D.
40

Answer 1

how many data points are there?

Answer 2

8

Answer 3

then 1 quarter of the data will be 8/4 ...

Answer 4

but how do you do ti

Answer 5

but since 8/4 is an integer, we are going to have to adjust it somewhat.

we want the average of the 2nd and 3rd lowest datapoints

Answer 6

that is how you do it ....

1/4 of the data is below the first quartile

n datapoints have 1/4 of their data below the n/4th lowest position

if n/4 is an integer, average out the n/4 and the next position

if n/4 is not an integer, then pick the next highest integer.

Answer 7

this website is for 13 and above ....

Answer 8

your the one telling people your age lol

Answer 9

8/4 = 2 right?

so we want to averge the 2nd and 3rd smallest values

Answer 10

not smallest value ... positional values

the positions may have the same value so 'smallest' is not an accurate term to use i spose