Question

I have many students are represented in the data set?

What are the mean median and model of the data set?

What do each of these values mean?

What is the range of the data?

Answer 1

a) 19 students

b) the mean 3 9/19

the median 3

the mode 3

c) the range 6

Explanation:

The data set shows that

0 points gets 1 student,

1 point gets 1 student,

2 points get 2 students,

3 points get 6 students,

4 points get 4 students,

5 points get 3 students and

6 points get 2 students.

a) There are 1+1+2+6+4+3+2=19 students.

b) The mean is

`(1\cdot 0+1\cdot 1+2\cdot 2+6\cdot 3+4\cdot 4+3\cdot 5+2\cdot 6)/(19)=(66)/(19)=3(9)/(19).`

The average score is 3 9/19 points.

The median is 10th term in the data set - 3 points (means the middle score in the data set)

The mode is 3 points (means most happened score)

c) The range of the data is 6-0=6 points.