hanna has a bag of 15 red, 11 orange 9 yellow, 12 green, 6 blue and 11 purple crayond.How many times would you expect ganna to puck a red crayon if she picked a crayon 90 times?
P(red) = (#red)/(#total)
Now take 90*P(red)
To find out how many times we would expect Hanna to pick a red crayon, we need to calculate the probability of picking a red crayon.
The probability of picking a red crayon can be found by dividing the number of red crayons by the total number of crayons:
Probability of picking a red crayon = Number of red crayons / Total number of crayons
Number of red crayons = 15
Total number of crayons = 15 + 11 + 9 + 12 + 6 + 11 = 64
Probability of picking a red crayon = 15 / 64 ≈ 0.2344
Now that we have the probability of picking a red crayon, we can multiply this probability by the total number of times Hanna picks a crayon to find out how many times we would expect Hanna to pick a red crayon:
Expected number of times picking a red crayon = Probability of picking a red crayon * Total number of picks
Total number of picks = 90
Expected number of times picking a red crayon = 0.2344 * 90 ≈ 21.1
Therefore, we would expect Hanna to pick a red crayon approximately 21 times if she picked a crayon 90 times.