What is the IQR of the following data set?

186, 181, 176, 149, 184, 190, 158, 139, 175, 111

30 determine the coefficient on x 12 y 24 x12y24 in ( x 3 + 2 x y 2 + y + 3 ) 18 . (x3+2xy2+y+3)18. (be careful, as x x and y y now appear in multiple terms! )

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Three coins are flipped. what is the probability that there will be at least two tails?