Question
There are two integers from 1 through 40 and are chosen by a random number generator.
Write the final answer in a/b form.
1.) P(the same number is chosen twice)
2.) P(both numbers are less than 30)
3.) P(one number is even and one number is odd)
4.) P(both numbers are even)
Write the final answer in a/b form.
1.) P(the same number is chosen twice)
2.) P(both numbers are less than 30)
3.) P(one number is even and one number is odd)
4.) P(both numbers are even)
Answers
bobpursley
1/40^2
2) 3/4 ^2
3) pr(even or odd)*pr(odd or even)
1/2
note the pr first is odd, secnd is even is 1/4, but the pr first id even, second is odd is 1/4, adding them, 1/2
4) 1/2*1/2
2) 3/4 ^2
3) pr(even or odd)*pr(odd or even)
1/2
note the pr first is odd, secnd is even is 1/4, but the pr first id even, second is odd is 1/4, adding them, 1/2
4) 1/2*1/2
Lauren
SO, would I have to square #1 and 2 to get my answer?
bobpursley
yes.
a) 1/40 * 1/40
a) 1/40 * 1/40
Lauren
So, would #2 be 6/4=3/2?
bobpursley
3/4 times 3/4 is 9/16
Lauren
And that's in the simplest form?