Find the value of a
50
Answers
Answered by
1
Answer:
50
Step-by-step explanation:
The value of 50 is 50.
Answered by
6
Step-by-step explanation:
10 30 50 70 90
F 17 5α+3 32 7α−11 19
Mean =
∑fi
∑fixi
=50
50=
17+5α+3+32+7α−11+19
10×17+30(5α+3)+50×32+70(7α−11)+90×19
50(12α+60)=640α+2800
3000+600α=640α+2800
40α=200
α=5
frequency of 30=5α+3=25+3=28
frequency of 70=7α−11=35−11=24.
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