Question

the students in social studies class are studying immigration and learned that many immigrants changed their last name when they became naturalized united states citizens. the lengths of ten students last names are shown in the table below. number of letters in students last names: 5, 12, 8, 12, 11, 8, 5, 5, 7, 12. refer to the data above. what is the range of the number of letters in the sampled last names?
○ a. 5
○ b. 8.5
○ c. 12
○ d. 7

Explanation:

Step1: Identify maximum value

The maximum value in the data set \(5,12,8,12,11,8,5,5,7,12\) is \(12\).

Step2: Identify minimum value

The minimum value in the data set is \(5\).

Step3: Calculate the range

The range is calculated by subtracting the minimum value from the maximum value. So, \(12 - 5=7\).

Answer:

D. 7