Answer:
122.67 average
Step-by-step explanation:
Mean = (every value added up)/(# of values)
Mean = (105 + 2(110) + 2(112) + 3(113) + 2(115) + 5(116) + 4(117) + 7(118) + 5(120) + 5(121) + 4(125) + 5(126) + 2(128) + 130 + 3(132) + 134 + 3(135) + 2(140) + 2(141) + 150)/60
= 7360/60
= 122.67
I had trouble understanding the data but I hope I did this right!
Answer:
Natalia's work is wrong.
Step-by-step explanation:
Natalia divided a decimal number by an entire number. Since division is a operation derived from multiplication, the best approach to check if work was good is multiplying the given result by denomination, that is:
1)
Given.
2)
Definition of addition.
3)
Distributive property.
4)
Definitions of multiplication and decimal number.
5)
Definition of division/Associative property.
6)
Associative property.
7)
Definition of multiplication.
8)
Definition of divsion.
9)
Defintion of decimal number.
10)
Definition of addition/Result
Natalia's work is wrong.
Answer:
yea I cant really do this over a screen