The following data show the number of questions different students of a class could answer in a quiz competition: 2, 4, 2, 5, 1, 4, 5, 7, 3, 5, 6, 2, 2, 5, 5, 5, 4, 6The dot plot below was made to represent the data.For which number is the data plotted incorrectly?2      3        4      5

u just need to count how many numbers are in ur data.

There is one 1....so the one dot over the 1 is correct
There are four 2's....so the 4 dots over the 2 is correct
There is one 3....so 1 dot over 3 is correct
There are three 4's...but u only have 2 dots over the 4 when there should be 3....so ur answer is going to be 4 <==