Identify the following variables as either discrete or continuous:
(a) The number of times heads comes up in 100 tosses of a coin
(b) The number of accidents occurring in a specified section of a freeway
(c) The weight of boxes shipped from an Amazon warehouse
(d) The concentration of carbon dioxide in the air of San Diego versus time
(e) Optimistic, most likely, and pessimistic estimates of salvage value
(a) Discrete
(b) Discrete
(c) Continuous
(d) Continuous
(e) Discrete
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_____ regulates protein synthesis in animals
a. Ribonucleic acid (RNA) c. The liver b. DNA d. The stomach
What material fills the cavities of the spongy bone?
a. Periosteum c. Yellow marrow b. Endosteum d. Red marrow
An R-22 refrigeration system requires a superheat of 8°F. If the evaporator saturation pressure is 43 psig, what should the bulb temperature be?
A) 35°F B) 51°F C) 28°F D) 8°F
The work center on the headstock:
A) Drives the workpiece B) May be live or dead, depending on the work type C) Is always dead D) Is always live