Question: The data represent the murder rate per 100,000 individuals in a sample of selected cities in the United States. Class Frequency 511......8 1218...... 5 1925.......7

The data represent the murder rate per 100,000 individuals in a sample of selected cities in the United States.
Class Frequency
5–11......8
12–18...... 5
19–25.......7
26–32.......1
33–39.......1
40–46.......3
Find the variance and standard deviation.

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