Clt or empirical rule: every day jo practices her tennis serve by continually serving until she has had a total of 50 successful serves. if each of her serve is, independent of previous ones, successful with probability 0.4, approximately what is the probability that she will need more than 100 serves to accomplish her goal?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

The sum of four times a number and three is two times the number minus twenty nine