Based on the relative frequency histogram below, which of the following statements is supported by the plot?
1 point
It is not possible to estimate the median without knowing the sample size.
The IQR of the distribution is roughly 10.
There are no outliers in the distribution.
The distribution is multimodal.
The mean of the distribution is smaller than its median.
Question 4
The midrange is defined as the average of the maximum and the minimum.
True or False: This statistic is robust to outliers.
1 point
False
True
Question 5
It is relatively common for fish to be mislabeled in supermarkets and even in restaurants. The table below shows the results of a study where a random sample of 156 fish for sale were collected and genetically tested. The researchers classified each sample as being labeled properly or being mislabeled. What fraction of smoked fish in the sample were mislabeled? Choose the closest answer.
1 point
9%
78%
18%
72%
28%
Comments
Leave a comment