Using the binomial distribution, it is found that there is a 0.037 = 3.7% probability that Adina's friend correctly identifies each of the 3 cups of water.
For each water, there are only two possible outcomes, either it is correctly identified, or it is not. The probability of a water being correctly identified is independent of any other water, hence the binomial distribution is used to solve this question.
<h3>What is the binomial distribution formula?</h3>
The formula is:
The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem:
- The friend guesses among 3 types, hence .
- 3 cups will be identified, hence .
The probability that each of the 3 cups is correctly identified is P(X = 3), hence:
0.037 = 3.7% probability that Adina's friend correctly identifies each of the 3 cups of water.
You can learn more about the binomial distribution at brainly.com/question/24863377
Answer:
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Step-by-step explanation:
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Step-by-step explanation: When you transfer the -1 to the y side you add it and pick which number adds to the sum of 5
Answer:
4
Step-by-step explanation:
4ways
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