Question

f
19. Find the mean of the given
frequency distribution.
5
115
125
25
135
4
145
6
155
40
165
20​

Answer 1

Step-by-step explanation:

mean=sum of terms/number of terms

5+115+125+25+135+4+145+6+155+40+165+20/12=940/12=78.33333333

Answer 2

Answer:

first we total the sum like this

5+115+125+25+135+4+145+6+155+40+165+20 = 940

then we divide 940 by the sum of observation and that is 12...

940 ÷ 12 = 78.33

so our mean of this answer is 78.33

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