Question

Identify the symbols used for each of the​ following: (a) sample standard​ deviation; (b) population standard​ deviation; (c) sample​ variance; (d) population variance.

a. The symbol for sample standard deviation is _________
`(s, s^2, \sigma, \sigma^2)`.
b. The symbol for population standard deviation is _________
`(s, s^2, \sigma, \sigma^2)`.
c. The symbol for sample variance is __________
`(s, s^2, \sigma, \sigma^2)`.
d. The symbol for population variance is ________
`(s, s^2, \sigma, \sigma^2)`.

Answer 1

a)
`s`

b)
`\sigma`

c)
`s^(2)`

d)
`\sigma^(2)`

Explanation:

you use s for samples and σ for population, and the variance is the square of standard deviation

a)
`s`

b)
`\sigma`

c)
`s^(2)`

d)
`\sigma^(2)`