Question

2) the daily attendance for a week for std 7th is 17,20,17,16,13,12, 13. find the average attendance of students attending regular class.

Answer 1

Answer:

avg. attendance=(17+20+17+16+13+12+13)/7

=108/7 =15(3/7)

Answer 2

Answer:

• 108/7 or 15.42

Step-by-step explanation:

Given

• Observations

1. 17
2. 20
3. 17
4. 16
5. 13
6. 12
7. 13

• Number of observations = 7

To find

• Mean or average

Solution

⇛ Average = Sum of all observations/Total number of observations

• 17 + 20 + 17 + 16 + 13 + 12 + 13/7
• 108/7
• 15.42

∴ The average attendance is 108/7 or 15.42.