Question

researchers studying catfish estimated the number of fingerling catfish and large catfish living in different rivers throughout the country. the following histograms summarize the relative frequency for each type of catfish.

histograms: distribution of fingerling catfish (x - axis: number per river, y - axis: relative frequency) and distribution of large catfish (x - axis: number per river, y - axis: relative frequency)

based on the histograms, which of the following is the best comparison of the means and the...

Explanation:

Since the question is cut off, I'll assume a common question about comparing means and ranges. For fingerling catfish, the number per river ranges from ~3000 - 12000, large from ~250 - 2250. So range of fingerling > large. Mean of fingerling: data is centered higher (peaks at 8000, 10000), large at lower values (peaks at 250 - 1500). So mean of fingerling > large, range of fingerling > large.

• Range: Fingerling catfish numbers (x - axis) span ~3000–12000, large ~250–2250 → fingerling range > large.
• Mean: Fingerling data centers at higher values (peaks 8000, 10000), large at lower (peaks 250–1500) → fingerling mean > large.

Answer:

The mean number of fingerling catfish per river is greater than that of large catfish, and the range of fingerling catfish per river is greater than that of large catfish.