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Two coins are tossed.

Event [tex]A[/tex]: The first coin lands on heads.
Event [tex]B[/tex]: The second coin lands on tails.

What is the probability that both events will occur?

For independent events: [tex]P(A \text{ and } B) = P(A) \cdot P(B)[/tex]

[tex]P(A \text{ and } B) = ?[/tex]

Give your answer in simplest form.


Sagot :

Let's solve this step by step:

1. Identify the Individual Probabilities:
- Event [tex]\( A \)[/tex]: The first coin lands on heads.
The probability of a coin landing on heads is [tex]\( P(A) = 0.5 \)[/tex] or [tex]\( \frac{1}{2} \)[/tex].
- Event [tex]\( B \)[/tex]: The second coin lands on tails.
The probability of a coin landing on tails is [tex]\( P(B) = 0.5 \)[/tex] or [tex]\( \frac{1}{2} \)[/tex].

2. Use the Formula for Independent Events:
Since the events are independent, the probability of both events [tex]\(A\)[/tex] and [tex]\(B\)[/tex] occurring can be found using the formula:
[tex]\[ P(A \text{ and } B) = P(A) \cdot P(B) \][/tex]

3. Substitute the Known Probabilities:
[tex]\[ P(A \text{ and } B) = 0.5 \cdot 0.5 \][/tex]

4. Calculate the Result:
[tex]\[ P(A \text{ and } B) = 0.25 \][/tex]

5. Express the Answer in Simplest Form:
The probability can be expressed in its simplest form as:
[tex]\[ P(A \text{ and } B) = \frac{1}{4} \][/tex]

Therefore, the probability that both the first coin lands on heads and the second coin lands on tails is [tex]\(\frac{1}{4}\)[/tex] or [tex]\(0.25\)[/tex].