00:01
A tidal waiver tsunami is usually the result of an earthquake in the pacific rim, often a thousand of miles from hawaii.
00:08
Tsunamis are rare but dangerous.
00:10
Many tsunamis are small and do little damage.
00:12
However, a tsunami 9 meters or higher is very dangerous.
00:16
Civil defense authorities sound an alarm telling people near the beach to go to higher ground.
00:20
About 30 % of all recorded tsunamis have been 9 meters or higher.
00:24
You are writing a report about six recent earthquakes in the pacific rim and you want to include a brief statistical profile of some possible events.
00:31
Regarding tsunamis in hawaii.
00:33
Let r be the number of tsunamis nine meters or higher, resulting from six randomly chosen earthquakes in the pacific rim, excuse me.
00:42
A, make a histogram of the probability distribution.
00:47
So our histogram, this is going to be a real rough sketch.
00:53
So i'm going to number my possible probabilities.
00:56
Zero, one, two, three, four, five, six, seven, eight, and nine...