Frequency, Frequency Tables, and Levels of Measurement · Try It 5

contains the total number of fatal motor vehicle traffic crashes in the United States for a period of 18 years.

$$\begin{array}{cccc}\text{Year}& \text{Total Number of Crashes}& \text{Year}& \text{Total Number of Crashes}\\ \text{Year 1}& \text{36,254}& \text{Year 11}& \text{38,444}\\ \text{Year 2}& \text{37,241}& \text{Year 12}& \text{39,252}\\ \text{Year 3}& \text{37,494}& \text{Year 13}& \text{38,648}\\ \text{Year 4}& \text{37,324}& \text{Year 14}& \text{37,435}\\ \text{Year 5}& \text{37,107}& \text{Year 15}& \text{34,172}\\ \text{Year 6}& \text{37,140}& \text{Year 16}& \text{30,862}\\ \text{Year 7}& \text{37,526}& \text{Year 17}& \text{30,296}\\ \text{Year 8}& \text{37,862}& \text{Year 18}& \text{29,757}\\ \text{Year 9}& \text{38,491}& \text{Total}& \text{653,782}\\ \text{Year 10}& \text{38,477}& & \end{array}$$
Answer the following questions.

(a) What is the frequency of deaths measured from Year 7 through Year 11?
(b) What percentage of deaths occurred after Year 13?
(c) What is the relative frequency of deaths that occurred in Year 7 or before?
(d) What is the percentage of deaths that occurred in Year 18?
(e) What is the cumulative relative frequency for Year 13? Explain what this number tells you about the data.

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Introductory Statistics 2e · §1.3 Frequency, Frequency Tables, and Levels of Measurement · Try It 5