https://www.khanacademy.org/math/precalculus/prob-comb/combinatorics-precalc/v/permutation-formula
I would watch a bunch of videos or ask a teacher or something for help
Answer:
Step-by-step explanation:
Answer:
It say the size of population characteristics
Step-by-step explanation:
Because it makes sense those are I need
Answer:
last one
Step-by-step explanation:
Answer:
it's D
Step-by-step explanation:
step 1 : add all the numbers
80 +100+20 +40
=240
step 2: divide the total by how many numbers there are
240÷4
=60
