Question

Jenna surveyed the students at her dance class to find out if they like salsa and/or ballet. The results of her survey are shown in the two-way table below:
Like Salsa


Do Not Like Salsa


Total




Like Ballet

32

42

74



Do Not Like Ballet

22

4

26



Total

54

46

100



If a student does not like ballet, what is the probability that student also does not like salsa?
8.7%
15.4%
18.2%
84.6%

Answer 1

The answer is 15.4 because the student who don't like ballet and don't like salsa is 4 divided by the total which is 26.

Answer 2

                                  like salsa              hate salsa               total
like ballet                       32                         42                          74  
hate ballet                      22                           4                          26
total                                54                         46                         100

if a student does not like ballet (there is 26 that do not like ballet)..what is the probability that the student does not like salsa..of those 26 that do not like ballet, 4 do not like salsa...
4/26 = 0.1538 = 15.38% rounds to 15.4% <=