Shark Attack Statistics and Probability

The video tutorial explains how to use graphs to calculate probabilities in real-world scenarios, such as determining the likelihood of reaching college students by phone during non-answering times. It also covers calculating the probability of shark attacks in Australia using historical data, emphasizing the use of experimental probability based on past trends.

What is the main purpose of using graphs in probability calculations?

• To simplify complex data for better understanding

• To confuse the audience

• To avoid using numbers

• To make the data look more appealing

Why might college students not answer phone calls during certain times?

• They are always busy with social media

• They dislike phone surveys

• They have no phone reception

• They are engaged in activities like sleeping, studying, or working

How many hours do college students spend on non-answering activities?

• 16.2 hours

• 12.3 hours

• 14.6 hours

• 10.5 hours

What is the probability that a randomly timed call will not be answered by a college student?

• 80.1%

• 50.5%

• 60.8%

• 70.2%

What historical data is used to calculate the probability of shark attacks?

• Shark migration routes

• Weather patterns

• Past shark attack records

• Ocean temperature changes

How many unprovoked shark attacks have occurred worldwide from 1580 to 2014?

• 2,777

• 1,500

• 4,000

• 3,200

What is the probability of a shark attack occurring in Australia based on historical data?

• 20.6%

• 25.4%

• 15.3%

• 18.7%

What assumption is made about the probability of future shark attacks?

• Past trends will continue into the future

• Shark attacks will decrease

• Shark attacks will only occur in Australia

• Shark attacks are unpredictable