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avatar+924 

In a group of seventeen people, five play guitar and six play piano. Only two people play both piano and guitar.

Which two-way table represents the data?

 

                              Play piano   Do not play piano           Total

Play guitar                3                        8                              11

Do not play guitar     2                       4                                6

         Total                 5                     12                               17

 

                            Play piano      Do not play piano         Total

Play guitar              4                        8                              12

Do not play guitar   2                        3                               5

Total                      6                        11                              17

 

                                 Play piano         Do not play piano      Total

Play guitar                   2                            4                          6

Do not play guitar        3                           8                          11

Total                           5                             12                        17

 

                             Play piano               Do not play piano        Total

Play guitar                2                                     3                         5

Do not play guitar   4                                      8                          12

Total                          6                                11                           17

 

I am completely unsure, it looks easy but so confused on what to do

 Jan 7, 2019
 #1
avatar+18346 
+3

It is the last one of the choices.....

 

 

 

 Jan 8, 2019
 #2
avatar+924 
+2

Where did you the 3,2,4,and 8 values ?If u dont mind explaining

jjennylove  Jan 8, 2019
 #3
avatar+924 
+2

Where did you the 3,2,4,and 8 values ?If u dont mind explaining

jjennylove  Jan 8, 2019
 #4
avatar+18346 
+1

The 2 is given     2 play guitar AND piano       

If a total of 5 play guitar then 5-2 =3   play ONLY guitar

If 6 play piano   then   6-2 = 4 play piano ONLY

 

The Q states 17 people         17 -(3+2+4) = 8 that play neither.   cheeky

ElectricPavlov  Jan 8, 2019

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