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Calculating Probability of an Event

Question 5If ...

Question

Question 5
If you have a spinning wheel with 3 green sectors, 1 blue sector and 1 red sector, what is the probability of getting a green sector? What is the probability of getting a non-blue sector?

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Solution

There are five sectors. Three sectors are green out of five sectors. Therefore, probability of getting a green sector = $\frac{3}{5}$
There is one blue sector out of five sectors.
Non - blue sectors => 5 - 1 = 4 sectors.
Therefore, probability of getting a non - blue sector $\frac{4}{5}$

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Q. Tick (✓) the correct answer:
In a spinning wheel, there are 3 white and 5 green sectors. It is spinned. What is the probability of getting a green sector?
(a)

\frac{5}{3}

\frac{5}{8}

\frac{1}{5}

\frac{3}{8}

Tick the correct answer in each of the following:

In a spinning wheel, there are 3 white and 5 green sectors. It is spinned. What is the probability of getting a green sector ?

$(a) \frac{5}{3} (b) \frac{5}{8} (c) \frac{1}{5} (d) \frac{3}{8}$

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Calculating Probability of an Event

Standard VIII Mathematics

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