World Record Times and Boundary Intervals Explained
The world record times set by Donald Lippincot in 1912 and Usain Bolt in 2009, along with information on boundary intervals. Discover details about world records set before and after 1977, and understand the significance of whiskers in statistical analysis.
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Presentation Transcript
In pairs: What was Donald Lippincot s world record time, set in 1912? What is Usain Bolt s current world record time, set in 2009? Write down information about three world records set before 1977 Write down information about three world records set after 1977 What do the whiskers mean?
In pairs: What was Donald Lippincot s world record time, set in 1912? 10.6 seconds What is Usain Bolt s current world record time, set in 2009? 9.58 seconds Write down information about three world records set before 1977 ??? Write down information about three world records set after 1977 ??? What do the whiskers mean?
Donald Lippincots world record time: 10.6 seconds Boundary at lower end: 10.55 seconds Lower bound = 10.55 seconds Boundary at upper end: 10.65 seconds Upper bound = 10.65 seconds Error interval 10.55 Lippincot s time (s) < 10.65
Donald Lippincots world record time: 10.6 seconds Lower bound = 10.55 seconds Upper bound = 10.65 seconds Error interval 10.55 Lippincot s time (s) < 10.65
Usain Bolts world record time: 9.58 seconds Boundary at lower end: 9.575 seconds Lower bound = 9.575 seconds Boundary at upper end: 9.585 seconds Upper bound = 9.585 seconds Error interval 9.575 Bolt s time (s) < 9.585
Usain Bolts world record time: 9.58 seconds Lower bound = 9.575 seconds Upper bound = 9.585 seconds Error interval 9.575 Bolt s time (s) < 9.585
100 metres 10.15, 10.25, 10.15 Owens time (s) < 10.25 10.05 Williams time (s) < 10.15 9.835 Bailey s time (s) < 9.845 Not necessarily Tallest and shortest 2.715 Wadlow s height (m) < 2.725 54.55 Dangi s height (cm) < 54.65 Mount Everest 28500 Everest s height (feet) < 29500
Kitchen cabinets (odd-one-out) 598 width (mm) < 602 Possibly not. The maximum total width 602 mm 5 = 3010 mm (or 3.01 m) Van The error interval for the sack of sand is 24.5 mass (kg) < 25.5 800 25.5 = 31.37 so the maximum safe number of bags of sand is 31.
