Question

8) What is the value of mean for the following data?
10 20 30 40
Marks
Number of students
2
3
4
1
a) 12 b) 24 c) 36
d) 48​

Answer 1

Answer:

c is correct answer i hope you like this

Answer 2

Answer:

b) 24

Step-by-step explanation:

$\frac{10 \times 2 + 20 \times 3 + 30 \times 4 + 40 \times 1}{2 + 3 + 4 + 1} \\ = \frac{240}{10} = 24$