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Rural Speed Limits Rural speed limits for all 50 states
Chapter 4, Problem 24E(choose chapter or problem)
Problem 24E
Rural Speed Limits Rural speed limits for all 50 states are indicated below.
60 mph |
65 mph |
70 mph |
75 mph |
1 (HI) |
18 |
18 |
13 |
Choose one state at random. Find the probability that its speed limit is
a. 60 or 70 miles per hour
b. Greater than 65 miles per hour
c. 70 miles per hour or less
Source: World Almanac
Questions & Answers
QUESTION:
Problem 24E
Rural Speed Limits Rural speed limits for all 50 states are indicated below.
60 mph |
65 mph |
70 mph |
75 mph |
1 (HI) |
18 |
18 |
13 |
Choose one state at random. Find the probability that its speed limit is
a. 60 or 70 miles per hour
b. Greater than 65 miles per hour
c. 70 miles per hour or less
Source: World Almanac
ANSWER:
Solution:
Step 1 of 3:
The rural speed limits for all 50 states are given below
60 mph |
65 mph |
70 mph |
75 mph |
1 (HI) |
18 |
18 |
13 |
a). We have to find the probability that its speed limit is 60 or 70 miles per hour.
Given that the number of possible choices is 50.
Then,
P(60 or 70 miles) =
Hence, the probability that its speed limit is 60 or 70 miles per hour is 0.38.