Omg don’t catfish it’s so damaging to your own self confidence!
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
1. B
2. A
3. D
4. C
If the number after the decimal is greater than 5, you need to round up.
11. YES. Because each x-value is only used once (no duplicate x-coordinates)
12. range is the y-values. the lowest it goes is -2 (with an open dot), then it goes to +2 (with an open dot). then there is a separate line where y = 4.
Answer: (-2, 2) U [4, 4]
13. f(-1): when x = -1, y = ??? <em>(do not count the open dot!)</em>
Answer: 1
14. f(3): when x = 3, y = ??? <em>(do not count the open dot!)</em>
Answer: 4