A professional pool player claims that she sinks at
least one ball In a pocket on 80% of her opening
Based on the dotplot of the simulation results and the
break shots. In a recent set of 20 games, she sunk at
0ool player's last 20 games, which conclusion can oe
drawn?
least one ball on her
break shot in only 14 of the
games. A simulation of 100 trials was conducted to
O Tihe player's true probability of sinking at least one
see how unusual these most recent games are
ball on her break is 27%.
The Professional Pool Player
Another 100 simulated trials would show a much
2
different outcome; therefore, we cannot draw any
conclusions.
It is most likely that she would sink at least one ball
T
during her break exactly 16 times.
Kouanbay
0 There is about a 27% chance of her sinking at least
one ball on her break 14 or fewer times in 20
10
games. This result is not unusual and there is no
convincing evidence that her average is less than
80%