Consider the following quantities. If the quantity is a fixed number, type "f". If the quantity is a variable, type "v".

a) $\mu_1$
answer:

b) $\sigma_1$
answer:

c) $\overline{x}_1$
answer:

d) $s_1$
answer:

e) $\mu_2$
answer:

f) $\sigma_2$
answer:

g) $\overline{x}_2$
answer:

h) $s_2$
answer: