:) Find the mean of the following distribution. Marks No. of Students 0-10 8 10-20 11 20-30 7 30-40 3
Answers
Answered by
1
Answer:
all are equal
Step-by-step explanation:
pls it brainliest answer
Answered by
0
Answer:
15.75
Step-by-step explanation:
mean = sum of all observations / no of observations
= 0+10+8+10+20+11+20+30+7+30+40+3
= 189/12 = 15.75
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