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Is 1 an even number?
1 is odd. An even number can be divided evenly, even though some elementary math teachers consider it even.
Can the sum of 1 odd number and 1 even number be even?
No. The sum of 1 odd number and 1 even number must always be odd.
A fair die is rolled 4 times in succession what is the probability that even numbers are rolled all 4?
You want: P(even) * P(even) * P(even) * P(even). P(even) = 3/6 or 1/2. Therefore probability even on 4 rolls is: 1/2 * 1/2 * 1/2 * 1/2 = 1/16 = 0.0625.
When rolling 2 dice what are the odds of getting both even numbers?
When a die is cast half the possible numbers are even. Therefore the probability is:Probability that die 1 is even = 1/2Probability that die 2 is even = 1/2Probability that both are even = 1/2 * 1/2 = 1/4.
When rolling two dice what are the odds of getting both dice to land on even numbers?
1 in 4. Your choices are to have an odd or even total, which is a 1 in 2 chance. In order to get an even number, you have to have both die even or odd. So that cuts the 1 in 2 in half, giving you a 1 in 4 chance of both dice being even. (1 in 2 for even times 1 in 2 both even gives you 1 in 4.)
Why do you get an even number when you add 2 odd numbers?
Any odd number is of the form 2n + 1. Adding two of these, call them a and b, will give even numbers (a-1) + 1 and (b-1) + 1. Since you then have 2 even numbers plus (1 +1), you have another even nunmber.
Why is the sum of two odd numbers even?
-- The first odd number is some even number plus an extra ' 1 '. -- The second odd number is some even number plus an extra ' 1 '. -- Add them. You get (an even number) + (an even number) + ( 2 ). That's an even number. ======================== Another mind-bending , brain-busting way to look at it : -- The first odd number is some even number plus an extra ' 1 '. -- The second odd number is some even number minus ' 1 '. -- Add them. You get (an even number) + (an even number) + ( [1 - 1] or zero ). That's an even number.
Why when you multiply an odd number with another odd number the result is a odd number?
yes, the product of 2 odd numbers is always an odd number. Well, the question is why. The first number is "even" + 1. Multiply both of these by your odd number. Now the "even" times "odd" is even, because every "1" in the odd number becomes a "2". And then the remaining 1 times "odd" must be odd, which is an even +1. Add it all up and you get evens everywhere except that final "1". So the result is even + 1 which is odd. There is a quicker way if you know how to multiply bracketed terms: odd x odd = (even + 1)x(even +1)= even x even +even +even +1 = must be odd.
Explain why the multiples of 20 will not include 1?
20 is even so all multiples of 20 must be even. 1 is not even.
Rolling an even number from two dice?
The two dice can be (odd, odd), (odd, even), (even, odd), or (even, even). Thus the probability of two dice totaling an even number is 2*(1/2)*(1/2) = 1/2. 50/50
The product of an odd and an even number always odd?
odd x even = even (2n + 1)(2n) = 2[n(2n + 1)] let n(2n + 1) = t = 2t (even)
Is 1 neither an even nor odd?
*1 is an odd number * 0 is an even number
