how to write a function that ask to outcome the probability of rolling i dice and getting number 5 from the first time?

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yosra 2022-12-10

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https://ww2.mathworks.cn/matlabcentral/answers/1875437-how-to-write-a-function-that-ask-to-outcome-the-probability-of-rolling-i-dice-and-getting-number-5-f

评论： Image Analyst 2022-12-10

im trying to write a function that ask the probability of getting number five from rolling a dice ( 1 - 6)

is answer is suppose to be 1\6

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Answer 1

Image Analyst 2022-12-10

Are you wanting to wanting to solve it by a Monte Carlo simulation? Then simply use randi and histogram.

This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started:

How do I get help on homework questions on MATLAB Answers? - MATLAB Answers - MATLAB Central

Obviously we can't give you the full solution because you're not allowed to turn in our code as your own.

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Image Analyst 2022-12-10

在 MATLAB Online 中打开

And we don't recomment using "i" as a variable name since that's the imaginary constant sqrt(-1). So if you roll "i" dice (like i = 8 or something), what does "getting number 5 from the first time" mean? Do you mean like all dice are labeled 1 to i and you're only interested in dice #1's value and none of the rest of the (i-1) dices values? And how many times are you going to roll this set of i dice? You'd need to do it lots of times to get a probability.

i = 3; % Would be better if you called this numberOfDice.  This is the number of dice rolled per experiment.
numExperiments = 1000; % However many times you're going to roll the set of i dice.
rolls = randi(6, numExperiments, i)
rolls = 1000×3
   5     3
   6     6
   4     6
   6     5
   1     4
   5     5
   5     1
   5     1
   4     1
   6     1