A student decides to investigate the relationship between atmospheric pressure and weather. For eight days, the student reads
a barometer and observes the weather outside. The student records the data in a table.
Which two statements does the data best support?
Day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Air Pressure (mmHg)
30.0
29.8
29.7
29.4
29.4
29.6
29.8
30.0
Weather
Clear and sunny
Partly cloudy and breezy
Cloudy and light wind
Rain
Scattered rain showers
Partly cloudy and windy
Clear and breezy
Mostly sunny and light wind
A. The weather will be windy when air pressure is
low.
B. The weather will change soon when air pressure
is low.
C. The weather is usually sunny when air pressure
is high.
D. The weather tends to change when air pressure
changes.