QUESTION IMAGE
Question
you flip a coin twice. what is the probability of getting heads and then getting tails? write your answer as a percentage.
Step1: Determine probability of each event
The probability of getting heads in a single - coin flip is $\frac{1}{2}$, and the probability of getting tails in a single - coin flip is also $\frac{1}{2}$. Since the two coin - flips are independent events, we use the multiplication rule for independent events.
Step2: Apply multiplication rule
The multiplication rule for independent events states that if $A$ and $B$ are independent events, the probability of both $A$ and $B$ occurring is $P(A\cap B)=P(A)\times P(B)$. Here, let $A$ be the event of getting heads and $B$ be the event of getting tails. So $P(A)=\frac{1}{2}$ and $P(B)=\frac{1}{2}$, and $P(A\cap B)=\frac{1}{2}\times\frac{1}{2}=\frac{1}{4}$.
Step3: Convert to percentage
To convert $\frac{1}{4}$ to a percentage, we use the formula $\text{Percentage}=\frac{1}{4}\times100\% = 25\%$.
Snap & solve any problem in the app
Get step-by-step solutions on Sovi AI
Photo-based solutions with guided steps
Explore more problems and detailed explanations
25%