Question

WILL GIVE MEDAL AND FAN!!! What is the median of the data set below? round to the nearest whole number
test scores: 77,92,84,97,72,88,77
answer choices
77
83.9
84
88

Answer 1

hey @amistre64

Answer 2

how many numbers are there?

Answer 3

7

Answer 4

and so the median is the number in the middle ... what is 7/2?

Answer 5

72,77,77,84,88,92,97
is it 84

Answer 6

something this small

3 numbers to the left and 3 numbers to the right leaves 1 number in the middle, the 4th position

Answer 7

yes, 84 is the forth positional value after sorting

Answer 8

thanks can i ask 2 more questions i just want to know if i'm doing these right i haven't done this stuff for like a million years

Answer 9

sure

Answer 10

what is the first quartile of the data set below?
275,257,301,218,265,242,201
answer choices
201
218
257
270

Answer 11

how many numbers? then divide by 4 defines 1q

Answer 12

7 numbers

Answer 13

one way to approach these to to take a quarter (a 4th) and find it like this

1(4) < 7 < 2(4)
^^
the 2nd valued number defines 1q

Answer 14

ok

Answer 15

7/4 = 1.xx so we round to 2 is the usual method, but this might be more useful

Answer 16

?

Answer 17

do we agree that

1 < 7/4 < 2 ?

Answer 18

i'm alittle confused right now and we can agree with that

Answer 19

then we round 7/4 up to 2 is all its amounts to

i was just presenting a less fractiony way of approaching it

Answer 20

ok

Answer 21

how did you get the 2

Answer 22

i thought we went over that ...

how many numbers are there?

1q defines 1 quarter of the data.

in order to find the first quartile (1q) of the data set below we divide the data set into 4 parts

Answer 23

oh yeah sorry

Answer 24

1 < 7/4 < 2

if you dont like fractions that can be stated as

1(4) < 7 < 2(4)

either way, the element in the set that defines the first quartle is the 2nd position once sorted

Answer 25

ok

Answer 26

First put the data set in order and then find the number that is in the middle

Answer 27

okay one sec

Answer 28

201,218,242,257,265,275,301

Answer 29

Okay, so the median is 257.
Happy studying! :)

Answer 30

A good tip is to cross out the numbers one by one from each side once the numbers are in order :)

Answer 31

it is asking about the first quartile

Answer 32

and, which do we pick in this case for 1q?

Answer 33

Ok, so for first quartile you pay attention to the numbers at the left of the median

Answer 34

and find the median of those numbers

Answer 35

@skittles_for_life6422

Answer 36

230

Answer 37

No, to the left

Answer 38

^_^

Answer 39

yeah i did it on the left

Answer 40

Err sorry, yes you did, but that’s not the median

Answer 41

the median is 218

Answer 42

of the first quartile

Answer 43

.. and what is the position of 218?

Answer 44

so you do not use the 257 to find the median on the left

Answer 45

No you do not

Answer 46

ok

Answer 47

You only need 257 to "narrow down” what is in the first quartile, so from there you find the median

Answer 48

@amistre64 is it in second place

Answer 49

right, which is where we were heading

1 < 7/4 < 2
^^^ 2nd position

Answer 50

good luck

Answer 51

ok i will ask my last question

Answer 52

what is the median of the data set below?
275,257,301,218,265,242,201
answer choices
201
230
257
270

Answer 53

is this one 257

Answer 54

B)

Answer 55

looks that way yes, sorted might be easier to see tho.

Answer 56

Well that was really vague then @skittles_for_life6422

Answer 57

Please post the entire question right away next time

Answer 58

yeah it was ^_^

Answer 59

suppers ready. ciao

Answer 60

Yes @skittles_for_life6422 it is 257 :)

Answer 61

oh they were to different questions thought just the same numbers

Answer 62

..Happy studying! Bye

Answer 63

thanks guys your awesome @openstudier101x @amistre64

Answer 64

byeee

Answer 65

No problem :)

Answer 66

Medal? haha

Answer 67

sorry i gave the medal earlier but i fanned you

Answer 68

wait @openstudier101x

Answer 69

Haha it’s cool, thx :)

Answer 70

I fanned you back :)

Answer 71

maaybe @amistre64 could give you a medal. what do you think @amistre64 do you think you could give @openstudier101x a medal

Answer 72

thanks @openstudier101x for the fan B) ^_^

Answer 73

haha no really it doesn’t matter, but thx :) ...And about the fan, no problem!

Answer 74

byeee

Answer 75

B)