Probability is a measure of how likely an event is to occur. The probability of a certain event occurring is defined as the number of ways the certain event can occur or the number of favourable outcomes, divided by the total number of possible outcomes.If we flip a coin once, the probability of it landing on heads is 1/2. 1 being the favourable outcome (H) and 2 being all possible outcomes (H, T). We can write this out like so:P(1H) = ½When you flip a coin twice, the possible outcomes are: HH, HT, TH, and TT. If you flip a coin twice, what’s the probability of obtaining at least one head? Select the best answer.
Question
Probability is a measure of how likely an event is to occur. The probability of a certain event occurring is defined as the number of ways the certain event can occur or the number of favourable outcomes, divided by the total number of possible outcomes.If we flip a coin once, the probability of it landing on heads is 1/2. 1 being the favourable outcome (H) and 2 being all possible outcomes (H, T). We can write this out like so:P(1H) = ½When you flip a coin twice, the possible outcomes are: HH, HT, TH, and TT. If you flip a coin twice, what’s the probability of obtaining at least one head? Select the best answer.
Solution
To find the probability of getting at least one head when flipping a coin twice, we first need to understand the total number of possible outcomes. When flipping a coin twice, the possible outcomes are: HH, HT, TH, and TT. That's 4 possible outcomes.
The event of getting at least one head includes the outcomes: HH, HT, and TH. That's 3 favourable outcomes.
So, the probability of getting at least one head is the number of favourable outcomes divided by the total number of outcomes.
Therefore, P(at least 1H) = 3/4.
Similar Questions
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