Question

Find the.

1. Probability of the pointer stopping on D in (Question 1-(a))?
2. Probability of getting an ace from a well shuffled deck of $52$ playing cards?
3. Probability of getting a red apple. (See figure below)

Answer 1

(a) In a spinning wheel, there are five pointers $A, A, B, C, D$.
So there are five outcomes.
Pointer stops at $D$ which is one outcome.
So the probability of the pointer stopping on $D = \frac{1}{5}$

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(b) There are $4$ aces in a deck of $52$ playing cards.
So, there are four events of getting an ace.
So, probability of getting an ace = $\frac{4}{42}$=$\frac{1}{4}$

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(c) Total number of apples = $7$
Number of red apples = $4$
Probability of getting red apple = $\frac{4}{7}$