billy pulled a number of colored marbles from a large bag. green 1 orange 4 red 1 yellow 9 white 3 based on…
billy pulled a number of colored marbles from a large bag. green 1 orange 4 red 1 yellow 9 white 3 based on experimental probability, how many of the next 20 marbles selected should you expect to be yellow marbles? yellow marbles
Answer
Explanation:
Step1: Calculate total marbles
$1 + 4+1 + 9+3=18$
Step2: Calculate experimental - probability of yellow
The experimental probability of getting a yellow marble $P(yellow)=\frac{9}{18}=\frac{1}{2}$
Step3: Calculate expected number of yellow marbles in 20 selections
Expected number $=P(yellow)\times20=\frac{1}{2}\times20 = 10$
Answer:
10