The number of pets owned by 10 people in 2 different age groups is displayed in the line plots. Based on the data, select all true statements. On average, 50–60-year-olds own fewer pets. The median number of pets owned by both groups is less than 2. The range of the number of pets owned is greater among the 20–30-year-olds. There is a smaller spread in the interquartile range of the 20–30-year-old group. The mean is a better descriptor of the 50–60-year-old group than it is for the 20–30-year-old group.