Bernice wants to know which ice cream parlor is the most popular among students at her school. which samples are random for this population and which are not?

four people from each of bernice's classes
every sixth person at bernice's favorite ice cream parlor
every third girl that walks by the school cafeteria
two people from every class during fourth period at bernice's school
every fifth person that walks by the school library

127459073968947726

step-by-step explanation:

your welcome : )

after simplifying it i got: -36.25 as my answer. hope that !

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice