An investigation compiled information about recent nonmilitary plane crashes. The causes, to the extent that they could be determined, are summarized in the table.
Causes of Fatal Accidents
Cause Percent
Pilot Error …………………. 46%
Other Human Error ……….. 8
Weather …………………… 9
Mechanical Failure ………… 28
Sabotage …………………... 9
Other Causes ……………… 1
a) Is it reasonable to conclude that the weather or mechanical failures caused only about 37% of recent plane crashes?
b) Why do the numbers in the table add to 101 %?
c) Create an appropriate display for these data.