1. Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample distribution of heights in centimeters, and the table shows sample statistics calculated based on this sample. Which of the following is not necessarily true? 100 80 60- 40 20- 0 150 160 170 Height 180 190 The sample median is 170.3 cm. O The population mean is 171.1 cm. The point estimate for the population mean is 171.1 cm. The sample mean is 171.1 cm. 200 Min Q1 Median Mean SD Q3 Max 147.2 163.8 170.3 171.1 9.4 177.8 198.1

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