Question

1. the graph below represents the result of a survey in which a number of students reported how many letters were in their last names. name length how many students were surveyed?

Explanation:

Step1: Count dots for each length

Count the number of dots above each number on the number - line representing the number of letters in last names.

Step2: Sum up the counts

There is 1 dot above 3, 3 dots above 7, 1 dot above 9, and 2 dots above 10. So, \(1 + 3+1 + 2\).

Answer:

7