Question

I need help with a couple question on two way frequency tables

Answer 1

ONce someone asks I will post a screencap

Answer 2

go ahead

Answer 3

okay

Answer 4

@jim_thompson5910 heres the question

Answer 5

ok one sec

Answer 6

here is the options

Answer 7

what are your thoughts on this?

Answer 8

Im looking for a working pen one moment

Answer 9

okay let me write down the problem

Answer 10

ok

Answer 11

sorry i just found my paper

Answer 12

thats fine

Answer 13

Okay so I think I need to look at the comlums and ad the two row in each colum together to see what number I must divde by?

Answer 14

why divide?

Answer 15

Well I would say so I have numbers to add together for the bottom row of my colum

Answer 16

all they want you to do is rearrange the given info into a table

then add up the rows to get the row totals
afterwards, add up the columns to get the column totals

no division is done at all

Answer 17

really?
Im having trouble so I watched a kahn academy video and they said to divide! Now I am really confused

Answer 18

you divide if they wanted RELATIVE frequencies

Answer 19

okay I need your help

Answer 20

normal frequencies are counts (whole numbers)

relative frequencies are percentages, fractions or decimal form

Answer 21

okay what about two way frequecies

Answer 22

how many men like playing sports

Answer 23

11

Answer 24

so "11" goes in the "Men" row and "Playing sports" column

Answer 25

the other values are done in a similar way

Answer 26

really thats it?

Answer 27

yep

Answer 28

again they just want normal frequencies

Answer 29

so the answer is B

Answer 30

correct

Answer 31

notice how they have "row totals" and "column totals"

do you see how those numbers were formed?

Answer 32

Okay can you double check my answer for the next?

Answer 33

sure

Answer 34

heres the question

Answer 35

I picked a

Answer 36

now notice how the keyword "relative frequency" comes up

Answer 37

it's not a simple count anymore

Answer 38

that "relative" changes everything

Answer 39

Oh do I divide with this one?

Answer 40

yes division will play a part now

Answer 41

okay let me take a crack at it. See I think I watched a video on realative

Answer 42

yeah it sounds like it too

Answer 43

I think its b!!!!!

Answer 44

why B?

Answer 45

because I was dividing the number in the colum/row by the colum total In the chart I made with they numbers I was given and got the same answers in the chart B!

Answer 46

Notice there are 26 people who are in high school and like action

this is out of 128 people total (see table in choice A or you can add up all the numbers)

Answer 47

so the relative frequency of those who are in high school and love action movies is 26/128 = 0.203125

that rounds to 0.20

Answer 48

in a normal frequency table, "26" goes in the "high school" and "action" column

in a relative frequency table, "0.20" goes in the "high school" and "action" column (since 26/128 is roughly 0.20)

Answer 49

one sec

Answer 50

and like before, the other relative frequencies are calculated in a similar way

Answer 51

so you divide by 128? I divded by 46

Answer 52

why 46?

Answer 53

it was that comlum total and I listened incorrectly

Answer 54

oh im dividing by 128 and i get it now
its D

Answer 55

well when they mean "relative" without specifying anything further, they mean relative to the entire group

so 26/128 = 0.20 roughly means that approximately 20% of the entire group is in high school and likes action movies

if it said "relative to action movies" then it would work. Or if it said "of those who like action movies, what is the relative frequency of those in high school?" then it would work

Answer 56

yeah it's D

Answer 57

okay ready next one

Answer 58

question

Answer 59

Can you teach me what this means?

Answer 60

let me look it over

Answer 61

I want to say B for some reason because they didn't say relative

Answer 62

@jim_thompson5910

Answer 63

I'm still thinking on this one

Answer 64

okay take your time

Answer 65

ok hopefully I have the right interpretation

Answer 66

okay

Answer 67

they ask "Which of the following is a two-way conditional frequency table for gender?"

so in a sense, they want to compare the results between genders (to see which percent like Aspen for instance)

Answer 68

okay...

Answer 69

it might help to take that original table and convert it to a frequency table (not a relative frequency table)

Answer 70

let's say there are 100 people

how many of those 100 people are male and like aspen?

Answer 71

22%

Answer 72

22% of 100 = ???

Answer 73

22

Answer 74

how many females like aspen?

Answer 75

16

Answer 76

so 22+16 = 38 people like aspen

Answer 77

okay aand 63 people like nyc

Answer 78

22 males like aspen
38 people total like aspen

if you just focus on aspen (ignore the other location), what is the percentage of males who like aspen?

Answer 79

44% of males enjoy aspen

Answer 80

ignore the other location

Answer 81

okay,

Answer 82

so is it still 22 or is it 44 i multiplied by 2 because it would make sense if there was one hundred men 44 enjoy aspen

Answer 83

22 males like aspen
38 people total like aspen

22/38 = ??

Answer 84

0.57

Answer 85

22/38 = 0.57894736842106

which rounds to 0.58

Answer 86

so 58% of the people who like aspen are male

Answer 87

okay

Answer 88

fill in the blank

____ percent of the people who like aspen are female

Answer 89

42%

Answer 90

yes

Answer 91

is it A?!?!?!?! eeeeeeeeeee

Answer 92

yeah

Answer 93

that's assuming my interpretation was correct

Answer 94

okay next one lol so srry but I am learning a ton