Mathematical statistics and the possibility of the fifth grade! ! ! Urgent! ! ! !

1. First, calculate the number of wage withdrawals between the two companies.

Company a:

(4000+2000*2+ 15* 1200+2*500)\( 1+2+ 15+2)

=27000\20

= 1350 (yuan)

The average value of Company A is 1350.

Company b:

(6500+3*4000+23* 1 100+3*500)\( 1+3+23+3)

=45300\30

= 15 10

The final number is 15 10.

The average value of Company B is 15 10.

15 10 is greater than 1350.

So it makes sense.

I think it's the majority! !

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