The two-way table shows the number of students in a school who like music and/or dance. like music do not like music total like dance 23 ? 42 do not like dance 15 11 26 total 38 30 68 what is the missing number in the table? 19 31 53 65

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Which is f(5) for the function –2x2 + 2x - 3?

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?