Question

number of tornadoes by county since 1950
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91+
according to the map above, which of the following statements about tornado frequency in oklahoma is true?
a. all oklahoma counties are equally at risk for tornado activity.
b. oklahoma has received more tornadoes since 1950 than in the previous 50 years.
c. no oklahoma county has had more than 100 tornadoes since 1950.
d. every county in oklahoma has had at least 10 tornadoes since 1950.

Explanation:

• Option a: The map shows different colors (representing different number ranges of tornadoes) for counties, so not all are equally at - risk.
• Option b: The map only shows data since 1950, there is no comparison with previous 50 - year data.
• Option c: The legend's highest range is 91 +, which implies no county has had more than 100 (as 91+ is the upper - most non - 100 + category).
• Option d: The lowest range in the legend is 11 - 20, so every county has at least 11 (more than 10).

Answer:

C. No Oklahoma county has had more than 100 tornadoes since 1950.
D. Every county in Oklahoma has had at least 10 tornadoes since 1950.