Question

The scores listed below are the results from students taking a dexterity test. What is the 75th percentile of these scores?

1, 1, 1, 1.5, 2, 2, 2, 2.5, 3

answers
2
2.25
2.5

Answer 1

1, 1, |1, 1.5, |2,| 2, 2,| 2.5, 3
I used | to make the it clearer
Obviously between 2 and 2.5 thr is 75th quartile.
so 75th quartile is the average of that two data

Answer 2

so its 2.25

Answer 3

you want the 75th percentage position of the 9 data points.

what is 75% of 9 ?

Answer 4

6.75

Answer 5

since that is a decimal, we round up; the number in the 7th position is what you want

Answer 6

if it had been an integer value, we would need to average 2 of them together

Answer 7

oo

Answer 8

whats oo mean?

Answer 9

typo ment ok

Answer 10

lol , got it :)

Answer 11

yup thanks