kassandra observed that the range in her monthly grocery bills was $150. the standard deviation was $45, and…

kassandra observed that the range in her monthly grocery bills was $150. the standard deviation was $45, and the iqr was $65. based on these measures of spread, which of the following statements is true? the middle 50% of the months, kassandras expenses varied by $65. kassandras average monthly grocery bill was $150. half of the months, kassandra had grocery expenses that differed by $150. kassandras monthly grocery expenses vary by exactly $45 each month.

kassandra observed that the range in her monthly grocery bills was $150. the standard deviation was $45, and the iqr was $65. based on these measures of spread, which of the following statements is true? the middle 50% of the months, kassandras expenses varied by $65. kassandras average monthly grocery bill was $150. half of the months, kassandra had grocery expenses that differed by $150. kassandras monthly grocery expenses vary by exactly $45 each month.

Answer

Explanation:

Step1: Recall definition of IQR

The inter - quartile range (IQR) represents the middle 50% of the data.

Step2: Analyze given information

We are given that the IQR of Cassandra's monthly grocery bills is $65. This means that the middle 50% of the months, Cassandra's expenses varied by $65.

Answer:

The middle 50% of the months, Cassandra's expenses varied by $65.