Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 110 hours. If e
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Since we know that law of order states that sum or product of any two specific numbers will be same irrespective to their order. and
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Law of order is only applicable for addition and multiplication. It is not applicable to subtraction and division. Let us see it by an example.
Law of grouping states that it does not matter how to order a group of numbers while adding or multiplying. and
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Law of grouping is not applicable to subtraction and division. Let us see it by an example.
Therefore, we can see that law of order and law of grouping is not applicable to subtraction.
The answer is 78
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