if you spin the spinner 12 times, what is the best prediction possible for the number of times it will land…
if you spin the spinner 12 times, what is the best prediction possible for the number of times it will land on green? times
Answer
Explanation:
Step1: Determine probability of landing on green
Assume the spinner is divided into 8 equal - sized sections and 2 of them are green. The probability $P$ of landing on green in a single spin is $P=\frac{2}{8}=\frac{1}{4}$.
Step2: Calculate the expected number of times
The expected number of times $E$ the spinner lands on green in $n = 12$ spins is given by the formula $E=n\times P$. Substitute $n = 12$ and $P=\frac{1}{4}$ into the formula: $E=12\times\frac{1}{4}=3$.
Answer:
3