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nignag [31]
4 years ago
15

For a scavenger hunt, Chessa put one coin in each of

Mathematics
2 answers:
GREYUIT [131]4 years ago
6 0
There is a chance that you could pick 1/4 with the because how little amout of nickels and 1/2 with dimes and quarters because of there is the same amount of each\
Alenkinab [10]4 years ago
4 0

Answer:

There are a total of 10 coins:

Because we have 10 small boxes, all equal, each box has the same probability of being picked.

the coins are:

4 quarters, 4 dimes and 2 nickels.

so 4 boxes have quarters, 4 boxes have dimes, and 2 boxes have nickels.

One way to simulate the experiment can be with a d10 dice, where if you roll it and the numbers are 0,1,2,3 this represents that you took a quarter, if the result is 4, 5, 6, 7 the result is a dime, and if the result is 8 or 9, the result is a nickel.

the problem if the coins are in your pocket is exactly the same because again you have the same distribution of coins and each coin has the same probability of being picked.

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Let us compute first the probability of ending up an odd number when rolling a dice. A dice has faces with numbers 1 up to 6. The odd numbers within that is 3 (1, 3 and 5). Therefore, each dice has a probability of 3/6 or 1/2. Then, you use the repeated trials formula:

Probability = n!/r!(n-r)! * p^r * q^(n-r), where n is the number of tries (n=6), r is the number tries where you get an even number (r=0), p is the probability of having an even face and q is the probability of having an odd face.

Probability = 6!/0!(6!) * (1/2)^0 * (1/2)^6
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A little boy saved nickels and dimes. He had 8 more nickels than dimes. The total of his money was $1.45. How many nickels and h
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