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When you have a consecutive numbers will the mean and median always be the same?
If there are an odd # of consecutive numbers, they will. If there are an even # of numbers, the mean will be halfway between the two medians.
What is the probability of rolling an odd number or an even number on a cube?
To answer this problem you first see how many even and odd numbers there are. There are 3 odd and 3 even. so the fraction for even and odd is 3/6 so then in simplified form it is 1/2. If they ask to express the probability as a decimal number it would be .5 or.50
How is Median determined both in data sets with an odd and even number of values?
Odd: Line numbers up in numerical order, middle number. Even: Same as above, find two middle numbers, find mean of two middle numbers.
Integers a b c and d not necessarily distinct are chosen independently and at random from 0 to 2007 inclusive What is the probability that ad-bc is even?
10/16 = .625 Analysis: a and d will be odd if and only if both are odd. Therefor, ad will be odd 1/4 the time. The same goes for bc. It will be odd 1/4 off the time. ad-bc is even if and only if both ad and bc are either odd or even. It's easiest to solve it from here with a table: ad bc ad-bc prob even even even 3/4*3/4 = 9/16 even odd odd 3/4*1/4 = 3/16 odd even odd 1/4*3/4 = 3/16 odd odd even 1/4*1/4 = 1/16 So, ad-bc will be even 9/16+1/16 = 10/16 of the time.
Is 225 even or odd?
Odd It is odd. The definition of an odd number is one that cannot be divided evenly by 2. The number 225 divided by two is 112 1/2.
