Ajar contained 6 red marbles, 10 green marbles, and 8 blue marbles. a marble was selected at random, the color was recorded, and the marble was placed back in the jar. the table shows the results after 60 trials. what was the relative frequency of selecting a red marble? enter your answer in the box to the nearest percent. % outcome number of times outcome occurred red : 13 green: 30 blue: 17

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

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%