There are two ways of ordering two letters and ; you can write the two orderings as and . (a) In an experiment, the outcome is an ordering of four letters , , , and . Define the sample space S by listing its elements in a way described above. (b) Describe an event where the letter comes last, by listing its elements. (c) Describe an event where the letter comes last and the letter does not come in the second place by listing its elements.

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

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.