Jose created a ball pit for his little sister to play in. He put 40 red balls, 55 purple balls, 45 yellow balls, and 60 green balls into the ball pit. While his sister is playing, one ball rolls out of the pit. What is the probability that the ball is red? (A) 0.17
(B) 0.20
(C) 0.25
(D) 0.40

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Which of the following is an example of conditional probability