Based on the dotplot of the simulation results and the random sample from last month’s new driver’s licenses, which conclusion can be drawn?
Answer
A
If we continued to take more samples of 10 teenagers, the center of the distribution would shift to 6 .
B
There is about an 8 percent chance that 4 or fewer teenagers smiled for their photo. This is not unusual and is not convincing evidence that the true probability is less than 60 percent .
C
The actual proportion of teenagers who do not smile is only 8 percent .
D
It is clear that exactly 6 out of 10 teenagers will smile in their driver’s license photo.