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To find the probability of a speed limit being either 70 mph or 75 mph, we can use the data provided.

The number of states with each speed limit is:

- 60 mph: 1 state
- 65 mph: 14 states
- 70 mph: 14 states
- 75 mph: 11 states

The total number of states considered is the sum of all these:

\[
1 + 14 + 14 + 11 = 40 \text{ states}
\]

Now, the number of states with speed limits of either 70 mph or 75 mph is:

\[
14 + 11 = 25 \text{ states}
\]

The probability of a speed limit being 70 mph or 75 mph is the ratio of these 25 states to the total number of states:

\[
\text{Probability} = \frac{25}{40} = 0.625
\]

Thus, the probability is 0.625, or 62.5%.

Would you like more details on this, or have any questions? Here are some related questions:

1. What is the probability of a speed limit being 65 mph?
2. How would you calculate the probability of 60 mph or 65 mph?
3. What is the complement probability of not having a 70 mph or 75 mph limit?
4. How would the probability change if the number of states increased for one of the limits?
5. How would you express this probability as a percentage?

**Tip:** Probabilities are always a value between 0 and 1, and they can be converted to percentages by multiplying by 100!

Learn how to calculate the probability of rural speed limits being either 70 mph or 75 mph using basic probability theory. This problem involves ratios and is suitable for students in Grades 6-8.

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