What is standard deviation of the following series
Measurement | Frequency |
Explanation for the correct option
Step 1: Make a tabular for the given problem
Let the mean of the series be .
The class interval formula is .
The class interval for the given series is
Measurement | Frequency | Midpoint | |||
Total |
Step 2: Calculate the standard deviation
The formula of standard deviation is
The standard deviation is
Hence option (C) is the correct option.