A company is reviewing the database of customer purchases over the past 3 years.Using descriptive statistics on this large data set, a business analyst found the following values. $$\begin{array} { | l | l | l | l | l | l | l | l | }
\hline \text { Variable } & \text { Court } & \text { Mearl } & \text { MinirmurI } & \text { Ql } & \text { Mediar } & \text { Q3 } & \text { Maxirnuri } \
\hline \text { Purdhases } & 56,472 & 105.21 & 10.24 & 31.09 & 74.88 & 117.23 & 201.40 \
\hline
\end{array}$$ From this we can conclude that,
A)68% of these purchases are between $105.24 and $74.88
B)The distribution of these purchases is negatively skewed
C)50% of these purchases are between $31.04 and $117.23
D)50% of these purchases are less than $105.24
E)The distribution of these purchases is not skewed

Question

A company is reviewing the database of customer purchases over the past 3 years.Using descriptive statistics on this large data set, a business analyst found the following values. $$\begin{array} { | l | l | l | l | l | l | l | l | } 
\hline \text { Variable } & \text { Court } & \text { Mearl } & \text { MinirmurI } & \text { Ql } & \text { Mediar } & \text { Q3 } & \text { Maxirnuri } \
\hline \text { Purdhases } & 56,472 & 105.21 & 10.24 & 31.09 & 74.88 & 117.23 & 201.40 \
\hline
\end{array}$$ From this we can conclude that,
A)68% of these purchases are between $105.24 and $74.88
B)The distribution of these purchases is negatively skewed
C)50% of these purchases are between $31.04 and $117.23
D)50% of these purchases are less than $105.24
E)The distribution of these purchases is not skewed

Quizplus · Accepted Answer

The values for Q1 (31.09) and Q3 (117.23) indicate that 50% of the purchases are between these two values, which is the definition of the interquartile range (IQR).

A Company Is Reviewing the Database of Customer Purchases Over