A normal histogram showing platelet size distribution is best described as

A normal histogram showing platelet size distribution is best described as

• A. Bimodal, nonskewed peaks
• B. Left-skewed single peak
• C. Right-skewed single peak
• D. Single peak, Gaussian distribution

Answer: (C)

A typical, healthy platelet-size distribution is unimodal with a tail that extends to larger sizes, giving a single peak and a longer right-hand side. This right-skew arises because there are many small platelets and progressively fewer larger ones, so the histogram stretches more toward bigger sizes without creating a second distinct group. A Gaussian distribution would be symmetric around the mean, which isn’t usually the case for platelet sizes in reality. A left-skew would mean more large platelets than small, which isn’t characteristic here, and a bimodal pattern would show two distinct size populations, which isn’t expected in a normal platelet-size distribution. So the best description is a single peak with right-side skew.

A typical, healthy platelet-size distribution is unimodal with a tail that extends to larger sizes, giving a single peak and a longer right-hand side. This right-skew arises because there are many small platelets and progressively fewer larger ones, so the histogram stretches more toward bigger sizes without creating a second distinct group. A Gaussian distribution would be symmetric around the mean, which isn’t usually the case for platelet sizes in reality. A left-skew would mean more large platelets than small, which isn’t characteristic here, and a bimodal pattern would show two distinct size populations, which isn’t expected in a normal platelet-size distribution. So the best description is a single peak with right-side skew.