Asimple random sample of 64 8th graders at a large suburban middle school indicated that 88% of them are involved with some type of after school activity. find the margin of error associated with a 98% confidence interval that estimates the proportion of them that are involved in an after school activity.

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.