In cribbage 6 cards are initially dealt from a standard deck. one of the ways to get points is to have a "15", i. e. having a set of 4 or fewer cards whose sum is 15 (j, q,ks all count as 10, a counts as 1, and 2-10 count as their number.) what is the probability of getting exactly 1 "15"? (note 5,10,10,3,3,8 counts as 2 "15"s since the 5 and the first 10 and the 5 and the second 10 both give 15, but 5,5,5,6,7 only counts as 1 "15"–all three 5s together.)

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Line wx is parallel to line yz. if m

How can you find the mean absolute deviation (mad) for this set of data?