What is the probability of getting a sum of 7 and 11 when two number cubes are rolled?
Pr(7) = 1/36
Pr(11) = 2/36 = 1/18
What is the probabilty of a number lower than 25 being odd or a factor of 4?
The question is being answered assuming that by "number" you mean a positive integer. The probability that the number meets these requirements is 14/24 or 7/12.
What is the total number of spots on a six- sided regular die?
This is your lucky day ! I'm about to not only hand you the answer, but I've decided
to take my time and lay out the entire calculation for you as well, too:
1 + 2 + 3 + 4 + 5 + 6 = 21
Find the number of times the face 5 is expected to occur in a sequence of 2000 throws of a fair die?
The probability of 5 is 1/6
So the expected number of times the face 5 shows up in 2000 throws is 2000*1/6 = 333.3... .
The first thing to do is find how many possible combinations of those numbers match the criteria. All numbers that start with 7 match it. And there are 5x4x3=60 possible numbers that start with 7. All numbers that start with 5 also match it, and there are 5x4x3=60 numbers that start with 5. All numbers that start with 35, 37 or 39 match it. And there are 4x3x3=36 numbers that do this. And finally, all numbers that start with 325, 327 and 329 match it, and there are 3x3=9 numbers that do this. In total this is 60+60+36+9=165 possible 4 digit numbers that match the criteria. The number of possible four digit numbers in total is 6x5x4x3 = 360.
This means the probability of a 4 digit number using only 1,2,3,5,7 and 9 being greater than 3251 but less than 8825 is 165/360 which can be simplified to 11/24.
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If you flip a coin two times how many outcomes give you a head and a tail?
it depends on if you can ride a unicycle dressed as Hitler with one shoe and no sock on the other foot and one hand tied behind your back with a fish being juggled by the other hand and your tongue.
What is the equation to spatially represent any object in the universe?
I'm not sure but that is the theory of everything ,still being founded
hey
If you flip a dime four times what is the probability that you will get at least two heads?
2 out of 4 chance
If Roberto has 200 coins and distributes them in such a way that each friend gets at least one coin, and no two friends get the same number of coins, the largest number of friends Roberto could have is 19.
This is a simple triangular function of a number.
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19 = 190
At that point, Roberto only has 10 coins left, and he can not give them to anyone else without duplicating the amount two friends get.
How much sandstone will cover 400 square feet?
It depends to what depth. One cubic INCH will cover 400 square feet in sandstone dust but it will be only 0.00002 inches deep!