Question 15 (5 points) (05.04 LC) Look at the branching tree diagram below. De Amphibians Reptiles Marsupials Dogs Cats Shearing teeth Retractable claws Fur Common ancestor Four limbs Amniotic egg Which group of organisms came before marsupials? (5 points) оа Only dogs Ob Only reptiles ос Both cats and dogs Od Both amphibians and reptiles​

What is the value of x in the diagram below?

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)