The mean of the numbers 10,20, 30 and 40 is *
(a) 20
(b) 25
(c) 30
(d) 50
Answers
Answered by
1
Answer:
mean = sum of total observations / no. of observation
mean = 10+20+30+40 / 4
= 100/4
= 20
(a) 20 is the mean of this data
Answered by
1
Answer:
(a) 20 is the mean
Step-by-step explanation:
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