if you spin the spinner 72 times, what is the best prediction possible for the number of times it will not…
if you spin the spinner 72 times, what is the best prediction possible for the number of times it will not land on green?
Answer
Explanation:
Step1: Count total sections and green sections
Assume the spinner has 8 equal - sized sections and 2 are green.
Step2: Calculate probability of not landing on green
The probability of landing on green is $P(\text{green})=\frac{2}{8}=\frac{1}{4}$. So the probability of not landing on green is $P(\text{not green}) = 1-\frac{1}{4}=\frac{3}{4}$.
Step3: Predict number of non - green landings
Multiply the total number of spins by the probability of not landing on green. $72\times\frac{3}{4}= 54$.
Answer:
54