Question

Make a stem-and-leaf plot of the following set of data and then find the range of the data.

83, 71, 62, 86, 90, 95, 61, 60, 87, 72, 95, 74, 82, 54, 99, 62, 78, 76, 84, 92

Answer 1

Okay first group the numbers by tens

(All 60's in one row, 70's in another, etc...)

Answer 2

do they have to be greatest to least or least to greatest or just in a row ( like the 60's per say 60, 61, 62, 62 ) or does it not matter.

Answer 3

Ah yes they should be in order

Answer 4

ok

Answer 5

one sec

Answer 6

54
60, 61, 62, 62
71, 72, 74, 76, 78
82, 83, 84, 86, 87
90, 92, 95, 95, 99

Answer 7

like this?

Answer 8

Good

Before we make the plot, lets find the range

What is the largest and smallest number here?

Answer 9

54, 99

Answer 10

Subtract them

99-54

Answer 11

45

Answer 12

Good, that is your range

Now lets make the leaf plot

Answer 13

For each row, remove the tens place and set it on the left side

Answer 14

wait I'm kinda confused. Is there a way to do it on like word or something?
I'm just trying to think of a way where I can do it fully online and not do it with paper
but also not have to write it out if that makes sense

Answer 15

You can do this mentally, (I was visually trying to show you)


Write out the last digit of each number in the right side of the table

Answer 16

4, 0, 1, 2, 2

Answer 17

Keep them separated by rows but yes

| 4
| 0, 1, 2, 2
|

Answer 18

that's it or is there more?

Answer 19

or not I guess not

Answer 20

Do it for all numbers

54
60, 61, 62, 62
You did the above

71, 72, 74, 76, 78
82, 83, 84, 86, 87
90, 92, 95, 95, 99

Answer 21

oh ok

Answer 22

4
0, 1, 2, 2
1, 2, 4, 6, 8
2, 3, 4, 6, 7
0, 2, 5, 5, 9

Answer 23

Good now write the tens place for each on the left side of the plot (Bolded sections)

54
60, 61, 62, 62
71, 72, 74, 76, 78
82, 83, 84, 86, 87
90, 92, 95, 95, 99

Answer 24

On the underscore, not on what I just posted
_ | 4
_ | 0, 1, 2, 2
_ | 1, 2, 4, 6, 8
_ | 2, 3, 4, 6, 7
_ | 0, 2, 5, 5, 9

Answer 25

5 | 4
6 | 0, 1, 2, 2
7 | 1, 2, 4, 6, 8
8 | 2, 3, 4, 6, 7
9 | 0, 2, 5, 5, 9

Answer 26

good that is your stem and leaf plot (Mind the unstriaghtedned writing)

Answer 27

ok and then it says to find the range?

Answer 28

We already found it

it was 45

Answer 29

oh yea, thanks alot! It's very well appreciated

Answer 30

You're welcome!