I always have disliked probablility...
So... I need some help.. If you will please much appreciated..
How many different signals can be made using four flags of different colors on a vertical flagpole if exactly three flags are used for each signal?
How many 5 letter code words are possible in the word SKATE
Thanks )
OK...
Also, if you will please check my answer on this one:
If a box of soda contains 36 bottles, 8 are white, 5 are tan 6 are pink 1 is purple, 2 are yellow, 4 is orange, 10 are green
Select 9 bottles randomly, probability that 3 are white
My answer: 8 c 3 / 36 c 9 ? This is right or is there more to it...
Harder problem..
Probability that 3 are white, two are tan, one is pink, one is yellow, and and two are green
Harder problem
If you select 9 bottles, without replacement, what it is probability that 3 will be white, 2 will be tan, 1 is pink, one is yellow, and two are green?
And one last one after that... seems simple but quickly turns complicated,
How many sundaes?
Ice Cream Flavors
Chocolate
Cookies N Cream
Strawberry
Mint
Toppings
Nut
Caramel
Gummy Bears
Oeros
Fudge
Butterscotch
How many sundaes are possible when choosing 1 sundae and one topping?
Help much appreciated... Again not my favorite subject to deal with in math
Hello skyslimitThe total number of ways of selecting 9 from 36 is .
You then have to choose:
- 3 white from 8. This can be done in ways.
- 2 tan from 5. This can be done in ways.
- 1 pink from 6. This can be done in ways
- 1 yellow from 2 ...?
- 2 green from 10 ...?
When you have filled in the gaps in the last three, there are then two things that you need to do to complete the calculation:
- Multiply all 5 of these answers together to find the total number of ways of choosing all 5 colours.
- Divide this answer by to find the probability that one of these selections occurs.
Use the same principle here. It's called the r-s principle, and it is:And one last one after that... seems simple but quickly turns complicated,
How many sundaes?
Ice Cream Flavors
Chocolate
Cookies N Cream
Strawberry
Mint
Toppings
Nut
Caramel
Gummy Bears
Oeros
Fudge
Butterscotch
How many sundaes are possible when choosing 1 sundae and one topping?
- If a task A can be carried out in ways, and an independent task B can be carried out in ways, then the number of ways in which both tasks can be carried out is .
So:
- How many ways are there of choosing an ice-cream flavour?
- How many ways are there of choosing a topping?
- Are these tasks independent of each other? (In other words, can any one of the ice-creams be combined with any of the toppings?) Answer: yes!
Then use the r-s principle and multiply your two numbers together to find the total number of sundaes.
If you want us to check your answers, post them here.
Grandad
For this one, my question, the 28c6 is derived exactly from where? I have it as being being (28): white subtracted from total of 36, and 6, the leftover of selected bottles. Is this right?
Also, for the harder one with multiple functions, do we not need to include what we have included previously?
And for the sundae problem I worded it wrong. it is supposed to say, 1 flavor 3 toppings. Is 3 (choices) * 6 * 6 * 6 (toppings) right??
Hello skyslimitCorrect!
No. This is a separate question. So you begin again in the way that I explained.Also, for the harder one with multiple functions, do we not need to include what we have included previously?
No. First, there are 4 choices of flavour, not 3. Then, it depends upon whether the 3 toppings must all be different. If you're allowed to choose the same topping more than once, then the answer is 4 x 6 x 6 x 6. But if they must all be different, then it's .And for the sundae problem I worded it wrong. it is supposed to say, 1 flavor 3 toppings. Is 3 (choices) * 6 * 6 * 6 (toppings) right??
Grandad