Mary is a good student. The probability that she studies and passes her test is 3/5. If the probability that she
studies is 8/10. What is the probability that she passes
given that she studies?

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits