The probability that an individual without a college education earns more than $50,000 is 0.2, whereas the probability that a person with a B. S. or higher degree earns more than $50,000 is 0.8. The probability that a person chosen at random has a B. S. degree is 0.2. What is the probability that a person has at least a B. S. degree if it is known that he or she earns more than $50,000?

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.