which statement must be true?\neach distribution has a different mean and the same standard deviation.\neach…
which statement must be true?\neach distribution has a different mean and the same standard deviation.\neach distribution has a different mean and a different standard deviation.\neach distribution has the same mean and the same standard deviation.\neach distribution has the same mean and a different standard deviation.
Answer
Explanation:
Step1: Observe the peak position
The peaks of the three curves are at the same x - value (around 70), so they have the same mean.
Step2: Observe the spread
The curves have different spreads. A wider curve indicates a larger standard - deviation. So they have different standard deviations.
Answer:
Each distribution has the same mean and a different standard deviation.