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__

b. the symbol for population standard deviation__

c. the symbol for sample variance is__

d. the symbol for population variance is__

a) The symbol for sample standard deviation is S

b) The symbol for population standard deviation is б (sigma)

c) The symbol for sample variance

d)The symbol for population variance is

Step-by-step explanation:

Step 1:-

Population:-  Population consists of the total of the observations with which we are concerned.

Parameters:-  The statistical constants of the population namely mean , variance and standard deviation 'б '

Sample:-  A sample is a subset of a Population

statistics:-

he statistical constants of the sample namely mean , variance and standard deviation 'S '

step2:-

a) The symbol for sample standard deviation is S

b) The symbol for population standard deviation is б (sigma)

c) The symbol for sample variance

d)The symbol for population variance is

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours