the graph below represents the result of a survey in which a number of students reported how many letters…
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?
Answer
Explanation:
Step1: Identify frequencies for each bar
Read the frequency of each bar from the graph. Frequencies for number of letters 2 - 10 are 2, 2, 2, 3, 2, 2, 3, 4 respectively.
Step2: Sum up the frequencies
Add all the frequencies together: $2 + 2+2 + 3+2 + 2+3 + 4$. $2+2+2 + 3+2 + 2+3 + 4=(2\times4)+(3\times2)+4=8 + 6+4=18$.
Answer:
18