10. The marks of 20 students in Physics are given below.
56, 32, 57, 74, 12, 45, 68, 87, 11, 34, 53, 23, 47, 24, 78, 37, 68, 79, 44, 67
a) Find the average marks.
b) Divide the class into two groups on the basis of the class performance.
a) Answer must be = 49.8
b) Answer must be = 50
Answers
Answered by
0
Answer:
your both answer are correct
congrats
Answered by
0
Answer:
Step-by-step explanation:
a] Average=sum of all observations/total number of observations
therefore
56+32+57+74+12+45+68+87+11+34+53+23+47+24+78+37+68+79+44+67/20
996/20
=49.8
b]I didnt understand ur b question.
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