Oh, dude, rational numbers are like any number that can be expressed as a fraction where the numerator and denominator are integers. So, like 3/4, -5/2, and 0 are all rational numbers because you can write them as fractions. It's like the cool kids club of numbers, you know?
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A rational number is any number that can be expressed as the quotient a/b of two integers, with the denominator b not equal to zero. Here are a few examples: 1/2, 10000/2, 3/1(3), .00000000000000000000001
No, all integers are rational, whole numbers.
Any positive integer not including 0. Also known as "counting numbers." 1,2,3,4,5,6,7,8,9,10,11...
3.5 and -3.5 is one such pair.
Define statistical inference and give an example
If a set is closed under an operation. then the answer will be a part of that set. If you add, subtract or multiply any two rational numbers you get another national number. But when it comes to division, it is closed except for one number and that is ZERO. eg 3.56 (rational number) ÷ 0 = no answer. Since no answer is not a rational number, that rational numbers are not closed under the operation of division.