The Data Suggests Than One Plausible Model, for X, the Number

Multiple Choice

The data suggests than one plausible model, for X, the number of named storms during hurricane season in a year, is a population distribution having mean $\mu$ and standard deviation $\sigma$ . If the standard deviation for a random sample of size 85 is 1.5, what is the standard deviation for a random sample of size 340?

A) 0.38
B) 6.00
C) 0.75
D) 1.50