Dexter has four different coins in his pocket. He randomly selects a coin from his pocket, replaces it, and selects another coin. What is the probability that bot coins are dimes?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school. each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220