Mathematics
Grade10
Easy
Question
Answer the following with the help of the data given below:
There are two brands of light bulbs which are brand M and Brand J. Here are the life spans of both brands (in hrs):
Brand M : 100 , 200 , 150 ,120 , 140 , 100
Brand J : 120 , 180 , 190 , 140 , 130 , 110
Which of the brands have a high average life span?
- Brand M
- Brand J
- both a and b
- None of these
Hint:
We have to find average i.e. mean.
The correct answer is: Brand J
The average life span of Brand M=
The average life span of Brand J=
Brand J have high average life span.
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There are two brands of light bulbs which are brand M and Brand J. Here are the life spans of both brands (in hrs):
Brand M : 100 , 200 , 150 ,120 , 140 , 100
Brand J : 120 , 180 , 190 , 140 , 130 , 110
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MathematicsGrade10
