Consider the following five-point summary for a variable that was obtained using 200 observations.

Minimum	Q1	Median	Q3	Maximum
34	54	66	78	98

a-1. Interpret Q1. multiple choice 1

• Eighty percent of the observations are less than 54, 20% of the observations are greater than 54.
• Seventy-five percent of the observations are less than 54, 25% of the observations are greater than 54.
• Twenty percent of the observations are less than 54, 80% of the observations are greater than 54.
• Twenty-five percent of the observations are less than 54, 75% of the observations are greater than 54. a-2. Interpret Q3. multiple choice 2
• Eighty percent of the observations are less than 78, 20% of the observations are greater than 78.
• Seventy-five percent of the observations are less than 78, 25% of the observations are greater than 78.
• Twenty percent of the observations are less than 78, 80% of the observations are greater than 78.
• Twenty-five percent of the observations are less than 78, 75% of the observations are greater than 78. b-1. Calculate the interquartile range

c. Is the distribution relatively symmetric? If not, comment on its skewness. multiple choice 4

• The distribution is symmetric.
• The distribution is positively skewed.
• The distribution is negatively skewed.
• Symmetry or skewness cannot be determined with the available information