If there are 20 blondes in a class, 25 Brunettes, and 5 Redheads in a class, the proportion of the class that is blonde is ______ and the probability that someone in the class in blonde is ______.

Respuesta :

If there are 20 blondes in a class, 25 Brunettes, and 5 Redheads in a class, the proportion of the class that is blonde is 0.40 and the probability that someone in the class in blonde is 0.60.

There are 50 people in the class

There proportion is given by:

20/50, 25/50, 5/50: 40%, 50%, 10%

0.40 is blonde and 0.60 probability

Is there a difference between proportion and probability?

Probability represents the chances of some event happening. It is theoretical. Proportion summarizes how frequently some event actually happened. Let us consider an example:

If we flip a fair coin, the probability that it will land on heads is 0.5 or 50%.

However, if we flip a fair coin 20 times then we can actually count the proportion of times it landed on heads. For example, perhaps it landed on heads in 60% of the flips.

The probability of landing on heads is theoretical, but the proportion of times the coin landed on heads is empirical – we could actually count the proportion.

To learn more about proportion and probability from the given link

https://brainly.com/question/18514274

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