In a frequency distribution in which the lowest value is 5 and the highest value is 20, the range is ____________________

Food and drink can be given to a diabetic patient who is having trouble controlling her airway

Indicate whether the statement is true or false

________________ are pre-engineered to provide an uniform fire extinguishing concentration of agent into a room or space

a. Local-application systems b. Carbon dioxide systems c. Total-flooding systems d. Fire alarm systems