two events are independant if they dont effecteach other at all, like if a die lands on a two, it doesnt affect me drawing a 3 of hearts from deck of cards.
relative probablity is the likelyhood of of an event happening, like dropped toast landing butter side down.
to get how many times it lands sunny side up, we work it out like this
realtive frequency=number of times landed "butter up"
number of times dropped
probability time line
the probability timeline is the scale of how likely it is to happeneing
it looks like this
0 .25 .5 .75 1
nope maybe even likely done job
a number is taken from a group, from one to ten
calculate the likelyhood that it is:
multiple of four
greater then 4 but less than 8
divisable by 2
multiple of four=0.2 or 2/10
because of there is only 4 and 8, 2 out of ten
greater than 4 and less than 8=0.3 or 3/10
because its only 5,6 and 7 as it doesnt include 4 and 8
divisable by 2=0.5 or 5/10
because it is just asking for multiples of 2, because they will be divisable by 2 EQUALLY.