For the given experiment, the relative frequency of getting tails is:
R = (12/25)*100% =48%
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How to get the relative frequency?</h3>
If we perform an experiment N times, and out of these N times, K times we get a given outcome (Where K is a number equal to or smaller than N).
The relative frequency of that particular outcome is given by the quotient between the number of times that we got that outcome and the total number of times that the experiment was performed.
In this case, the experiment is performed 25 times, and 12 times we get tails, then the relative frequency for getting tails is:
R = 12/25
If we want to write it in percentage form, then we get:
R = (12/25)*100% =48%
If you want to learn more about relative frequency:
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We have events:

- a <span>student stays in the school's dormitory

- </span>a <span>student stays with family

- </span><span>a student receives As
and </span> probabilities:

We want to calculate the probability <span>that the student lives in the school dormitory given he </span><span>receives As so it will be </span>

. From the <span>Bayes' theorem we know that:

The only thing we don't know is

, but we can calculate it using the l</span><span>aw of total probability. There will be:

So our probability:

Answer D.
</span>
.67 divided by 6 = .112/1
1.5 divided by 6 = .25/1
.75 divided by 6 = .125/1
multiply all by 15
.112 x 15 = 1.68
.25 x 15 = 3.75
.125 x 15 = 1.875
Given:
A fair die is rolled.
It pays off $10 for 6, $7 for a 5, $4 for a 4 and no payoff otherwise.
To find:
The expected winning for this game.
Solution:
If a die is rolled then the possible outcomes are 1, 2, 3, 4, 5, 6.
The probability of getting a 6 is:

The probability of getting a 5 is:

The probability of getting a 4 is:

The probability of getting other numbers (1,2,3) is:


We need to find the sum of product of payoff and their corresponding probabilities to find the expected winning for this game.
Therefore, the expected winnings for this game are $3.50.
The answer would be C., because when you actually divide <span>15.39 ÷ 0.95, it's 16.2, and so when you round that it would turn to 16. c:</span>