What is the probability that an event is certain to occur?

  As a procedure is repeated again and again, the relative frequency of an event tends to approach the actual probability.  This is known as

Blood lead levels of low, medium and high used to describe the relationship between lead and IQ.

  Find the mode for the given sample. 20,  38,  46,  38,  49,  38,  49

Among the subjects surveyed, as part of the California Health Interview Survey (CHIS), several subjects are randomly selected and their heights are recorded.

Solve the problemThe indexes in the forecasting indicators provide a complete forecast.

Solve the problemTroista Mobile Accessories sells mobile apps on their Web site. If a customer spends on average, $12 per visit and visits the Web site 20 times each year, what is the average nondiscounted gross profit during a customer’s lifetime? Given that Troista makes a margin of 60 percent on the average bill, with 25 percent of customers not returning each year.

How should the nurse document mild, slight pitting edema the ankles of a pregnant patient?

The nurse is performing an assessment on an adult. The adult’s vital signs are normal, and capillary refill time is 5 seconds. What should the nurse do next?

The nurse is listening to bowel sounds. Which of these statements is true of bowel sounds?