Math, asked by adityarj2004, 8 months ago

Q7.. 1. Find Combined Mean from the following dataN1=40,-X1=10,
N2=60,-X2=15*

Answers

Answered by asifzaheer891

0

Answer:

mean =x1+x2/n1+n2

= 10+15/60+40

25/100

0.25

Answered by chetansai9999

0

Answer:

x12=13

Step-by-step explanation:

x12=N1⋅x1+N2⋅x2/N1+N2

x12=40⋅10+60⋅15/40+60

x12=400+900/100

x12=1300/100

x12=13

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