you select a marble without looking and then put it back. if you do this 10 times, what is the best…
you select a marble without looking and then put it back. if you do this 10 times, what is the best prediction possible for the number of times you will pick an orange marble? times
Answer
Explanation:
Step1: Count total marbles
There are 10 marbles in total (3 orange + 7 non - orange).
Step2: Calculate probability of picking orange
The probability $P$ of picking an orange marble is $\frac{3}{10}$ since there are 3 orange marbles out of 10 total marbles.
Step3: Predict number of times
We do the experiment 10 times. The expected number of times of picking an orange marble is the probability of picking an orange marble times the number of trials. So, $n = \frac{3}{10}\times10$. $n = 3$
Answer:
3