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Mashutka [201]
3 years ago
6

Kevin and Randy Muise have a jar containing 59 coins, all of which are either quarters or nickels. the total value of the coins

in the jar is $7.75. how many of each type of coin do they have?
Mathematics
1 answer:
valkas [14]3 years ago
6 0

Answer:

there are 28 quarters and 13 nickels

Step-by-step explanation:

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There are two possible outcomes of this experiment either success p or failure q. It has a given number of trials and all trials are independent therefore it is<u><em> binomial probability distribution.</em></u>

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In the question given above n= 5 p =1/2 q= 1/2  r is the given point.

  1. <u>Part 1:</u>

The number of ways in which different people get off the bus can be calculated using combinations since the order is not essential. Therefore

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<u>2. Part 2:</u>

The probability that all four people get off the bus on the first stop is given by :

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<u>3. Part 3:-</u> The probability that all four people get off the bus on the same stop.

P (x= x)= 5C5 (1/2)^0(1/2)^4= 1(1/2)^4= 1/16

<u>4. Part 4-</u> The probability that <u><em>exactly three of the four</em></u> people get off the bus on the same stop.

P (x= x)= 5C5 (1/2)^3(1/2)^1= 1(1/2)^4= 1/16

For binomial distribution click

brainly.com/question/15246027

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