Swimming Race Analysis and Statistics

The video tutorial explores data from the 2012 Olympics 100-meter backstroke event, focusing on the semifinal and final rounds. It explains how to calculate average race times and compares the times between the two rounds. The tutorial also discusses the concept of variance in race times and checks for disqualifications. Through a detailed step-by-step process, viewers learn to analyze race data and draw conclusions about swimmer performance.

How many swimmers participated in the 2012 Olympics 100-meter backstroke semifinal round?

• 9

• 8

• 6

• 7

What determines the winner in a swimming race?

• Shortest time

• Longest time

• Average time

• Most consistent time

How many swimmers were there in the final round of the 100-meter backstroke?

• 6

• 7

• 8

• 9

What is the formula to calculate the average time of swimmers?

• Total time minus number of swimmers

• Total time plus number of swimmers

• Total time multiplied by number of swimmers

• Total time divided by number of swimmers

What was the average time of swimmers in the semifinal round?

• 53.1875

• 53.3125

• 53.375

• 53.125

What was the average time of swimmers in the final round?

• 53.125

• 53.3125

• 53.375

• 53.1875

Was any swimmer disqualified during the finals?

• Not sure

• Maybe

• No

• Yes

Did the times in the finals vary more than in the semifinals?

• Yes

• Not mentioned

• Same

• No

Did all swimmers swim faster during the finals?

• Not mentioned

• No

• Some did

• Yes

Which of the following statements is true based on the analysis?

• All swimmers swam faster in the finals

• Semifinal times were faster on average

• One swimmer was disqualified

• Times in the finals varied more