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Mathematics 9 Online
OpenStudy (hoothoot23):

A group of students were surveyed to find out if they like watching television or reading during their free time. The results of the survey are shown below: 90 students like watching television 20 students like watching television but do not like reading 80 students like reading 40 students do not like watching television Make a two-way table to represent the data and use the table to answer the following questions. Part A: What percentage of the total students surveyed like both watching television and reading? Show your work. Part B: What is the probability that a student wh

OpenStudy (hoothoot23):

OpenStudy (hoothoot23):

@cinnamonbun

OpenStudy (hoothoot23):

@openstudier013087

OpenStudy (hoothoot23):

@jim_thompson5910

OpenStudy (hoothoot23):

@openstudier013087

jimthompson5910 (jim_thompson5910):

how far did you get @hoothoot23 ? Were you able to set up the two-way table?

OpenStudy (hoothoot23):

its confusing

OpenStudy (hoothoot23):

i tried

OpenStudy (hoothoot23):

i just dot know where the numbers go

jimthompson5910 (jim_thompson5910):

Let's make up some notation. This is to simplify things W = person likes to watch TV ~W = person does NOT like to watch TV R = person likes to read ~R = person does NOT like to read The two-way table would look like this |dw:1463802983053:dw|

jimthompson5910 (jim_thompson5910):

We're told `90 students like watching TV` where does the number "90" go in this two-way table? You can write in 90 or mark the cell or describe which row and column

OpenStudy (hoothoot23):

90 goes in the row w

jimthompson5910 (jim_thompson5910):

which cell in row W?

OpenStudy (hoothoot23):

the first

jimthompson5910 (jim_thompson5910):

that cell is where people like reading and watching tv but they don't say "90 people like reading and watching tv"

OpenStudy (hoothoot23):

so in -R

jimthompson5910 (jim_thompson5910):

the next cell over is where people like watching tv, but they don't like reading

jimthompson5910 (jim_thompson5910):

they don't say "90 people like watching tv and hate reading"

jimthompson5910 (jim_thompson5910):

the 90 would go in the "total" cell in row W |dw:1463803272798:dw|

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