The number of patients treated at Dr. Walters's dentist office each day was recorded for eight days. Use the data 10, 7, 8, 7, 6, 4, 3, 13 to find the mean, median, and mode for this
sample.
A) 7.25, 7, 7
B) 7.25, 8, 7
C) 5.625, 7,7
D) 5.625, 8, 7

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.