Question

Stacy uses a spinner with six equal sections numbered 2, 2, 3, 4, 5, and 6 to play a game. Stacy spins the pointer 120 times and records the results. The pointer lands 30 times on a section numbered 2, 19 times on 3, 25 times on 4, 29 times on 5, and 17 times on 6.

Write a probability model for this experiment, and use the probability model to predict how many times Stacy would spin a 6 if she spun 50 times. Give the probabilities as decimals, rounded to 2 decimal places.


Spinning 2:



Spinning 3:



Spinning 4:



Spinning 5:



Spinning 6:



Stacy would spin a 6 approximately

times in 50 tries.

Answer 1

To compute the probabilities, just divide the number of times a number was landed by the total amount of outcomes.

Spinning 2: 30/120 = 0.25

Spinning 3: 19/120 = 0.16

Spinning 4: 25/120 = 0.21

Spinning 5: 29/120 = 0.24

Spinning 6: 17/120 = 0.14

Stacy would spin a 6 approximately 0.14*50 = 7 times in 50 tries.