Geometry

Question Analysis
This question involves using a frequency table to calculate the probability of a compound event.
The main focus is on correctly identifying the relevant frequencies for the two specified bird types (sparrow and blue jay), summing them up, and then dividing by the total frequency of all bird sightings to obtain the probability.

Key Concept Explanation
For mutually - exclusive events (a bird sighting can't be both a sparrow and a blue jay at the same time), the probability of event or event occurring, , is calculated as .
The probability of an individual event is determined by

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