Rachelle spends 330 min/wk exercising. her ratio to time spent on aerobics to time spent on weight training is 6 to 5. how many minutes per week does she spend on aerobics and how many minutes does she spend on weight training. must use any system of linear equations.

What is the upper quartile in the box plot?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: