Data collected on the frequency of mountain bird songs at three different elevations. Data collected from 100 birds at each elevation. How does altitude relate to song frequency?

Low altitude: 80 below 1500 Hz
Medium altitude: 50 below 1500 Hz
High altitude: 20 below 1500 Hz
A. Medum altitude has medium frequency songs
B. Higher altitudes are correlated with higher song frequencies.
C. Higher altitudes are correlated with lower song frequencies.
D.Altitude does not affect bird frequencies.

3 answers

Based on the data you provided, the relationship between altitude and song frequency can be analyzed as follows:

  • At low altitude (below 1500 Hz), 80 birds were observed singing.
  • At medium altitude (below 1500 Hz), 50 birds were observed singing.
  • At high altitude (below 1500 Hz), only 20 birds were observed singing.

From this information, it is evident that as the altitude increases, the number of birds singing at frequencies below 1500 Hz decreases. This suggests that higher altitudes are associated with lower song frequencies.

Therefore, the correct answer is:

C. Higher altitudes are correlated with lower song frequencies.

Thanks!

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