Solve 7 ÷ one half = ___. Question 1 options: 14 15 24 40
1 answer:
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Using it's concept, it is found that the relative frequency probability of rolling an even number based on this experiment is .
A relative frequency is the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem:
- 50 dices are thrown, hence
.
- 22 resulted in an even number, hence
The <u>relative frequency</u> is given by:
A similar problem is given at brainly.com/question/20630951
Answer:
Probability = 0.190
Step-by-step explanation:
Given:
Number of questions, 'n' = 20
Each question has four choices.
Let event of choosing correct answer be success and its probability be represented by 'p'.
Therefore, event of choosing wrong answer is failure and its probability be represented by 'q'.
Now, probability of success is choosing one correct answer out of 4 options. So,
Now, 'p' and 'q' are complements of each other. Therefore,
Now, we need 4 successes. Therefore,
Using Bernoulli's theorem to find 'x' successes from 'n' questions, we get:
Plug in 4 for 'x', 20 for 'n', 0.25 for 'p' and 0.75 for 'q'. Solve.
Therefore, the probability of getting 4 correct answers out of 20 questions is 0.190.