Statistics

The chance of not flipping a head in each instance is 1/2. You need that to happen three times.

1/2 x 1/2 x 1/2 = 1/8

So there is a 1 in 8 chance of getting no heads from 3 coin flips.

There are 36 permutations of rolling two standard dice. Of them, four (1+4, 2+3, 3+2, and 4+1) sum to five, and three (6+4, 5+5, and 4+6) sum to ten. The probability, then of rolling a multiple of five is 7 in 36, or about 0.1944.

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21 of them.

It would be 999 hundredths, which is 9.99

There are 52 cards in a deck. 52cards/4 suits = 13. 13x3=39. There are 39 cards in a deck that are not diamond.

heads

When you want to find the probability of something happening for the first time while repeating an experiment, you use the geometric distribution. For example, you are throwing a six-faced die and you are expecting the number '6' to be thrown for the first time.

hundreds thousands

The range is 57.

Lucy and her friends each have seven cards, as one third of 21 is 7.

42.

Usually the intervals in a frequency chart should be equal.

You Use GLUE :D x

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A pencil?

The median is 4

If you brush your teeth 3x a day and you floss once a day, how long do you take?

Outcomes are 2 X 6 = 12.

15C8 = 15!/7!8! = 15*14*13*12*11*10*9*8!/7*6*5*4*3*2*1*8! = 2*13*11*5*9/2 = 6,435

2-3

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The median of the four numbers is 10.

I'm sorry what i was meaning what r all the 4 number combinations that can be made with 3 numbers.

Ie. 1111,1112,1113,1121,1122,1123,1131,1132,1133, etc.

In that case, we can think of it this way

For the first one, there is 3 possibilities, 1, 2, 3. For each one of them, the second one also have three possibilities, 1, 2, 3. Since there is three for every different first number, there is 9 possibilities for just the first two.

Hope you see the pattern, for all 4, it would be 3 x 3 x 3 x 3 which is 81 different possibilities.

Blaise Pascal.