Question

What are the minimum,first quartile,median,third quartile,and the maximum of the data set?55,62,61,54,68,72,59,61,70 pls help thnx...

Answer 1

median is the middle result,
if u had 5 results in the data: 1, 79, 15, 78, 16
rearrange from highest to lowest: 1, 15, 16, 78, 79
median is the middle one, so 16 in this case
even thought the mean is more like 38 ish

Answer 2

u following so far?

Answer 3

@Lisad9708

Answer 4

I'm trying I'm kinda lost I have no clue just keep coming ill try my best to understand

Answer 5

ok, so here's your data:
55,62,61,54,68,72,59,61,70
and here's your data, re-arranged from highest to lowest:
54 55 59 61 61 62 68 70 72
so which is the middle number in this?

Answer 6

61?

Answer 7

yep, so there's 61, then there's 4 numbers on either side

The median is the middle value of the data set.

The lower quartile (Q1) is the median of the lower half of the data set.

Answer 8

so, median equation:
median term = half of (n+1)
so our data set has 9 values
median term = half of (9+1)
= half of 10
= 5th term in the data set (when arranged from highest to lowest)
you guessed it right before it was 61
1st quartile term = quarter of (n+1)
so our data set has 9 values
1st quartile term = 1/4 of (9+1)
= 1/4 of 10
= 2.5th term = average of 2nd and 3rd values

Answer 9

so what does that equal?

Answer 10

or at least: what are the 2nd and 3rd values...?

Answer 11

Do I have square root or divide or times it

Answer 12

Third value is 68?

Answer 13

no, none of the above yet
here's your data, arranged from highest to lowest:
54 55 59 61 61 62 68 70 72

what are the 2nd and 3rd values?

Answer 14

55,59?

Answer 15

yep, perfect
now whats the average of them? (mean average)

Answer 16

= (55+59)/2

\[mean = \frac{(55 + 59)}{ 2 }\]

Answer 17

When u said average do I add them 2gether?

Answer 18

yes, then divide by 2

Answer 19

Pls don't give up on me I'm kinda slow its been awhile n math is not my thing.

Answer 20

that's ok, u should still be able to add 2 numbers together though
and then divide that answer by 2

Answer 21

" n math is not my thing. " dude i was the same, but then i stopped thinking of it as numbers and more as logic puzzles, and it seemed to get easier

Answer 22

57

Answer 23

so 55+59 = 114
114/2 = 57
so your first quartile is 57

Answer 24

spot on dude

Answer 25

now:
3rd quartile term = 3 quarters of (n+1)
so our data set has 9 values
3rd quartile term = 3/4 of (9+1)
= 3/4 of 10
= 7.5th term = average of 7th and 8th values

Answer 26

so from highest to lowest:
54 55 59 61 61 62 68 70 72

what are the 7th and 8th values?

Answer 27

68+70?

Answer 28

yep
now divide that by 2

Answer 29

69

Answer 30

yep, that's your 3rd quartile

Answer 31

now, ur max and min are your highest and lowest numbers in the data set
54 55 59 61 61 62 68 70 72
shoot

Answer 32

72

Answer 33

that's ur max
done, props

Answer 34

72-54

Answer 35

yeah, and that's pretty much it for that q, yeah?

Answer 36

So minimum is 18 first quartile is 57 third quartile is 69 maximum is 72 I didn't get the medians

Answer 37

median was 61, first quartile 57, 3rd quartile 69 max 72... where did 18 come from...?

Answer 38

Oh I thought there is a minimum

Answer 39

minimum = lowest number in data set = 54

Answer 40

ah, i getcha now, range = 18

Answer 41

also, don't forget to close off your questions afterwards.
button beside the "bump" at the top

Answer 42

Thnx for ur help I have some more question if its ok with u thnx again

Answer 43

sure, this ones getting a bit long, close and start a new one...?