Exams & Certification

When Jose tells a joke sometimes people laugh, sometimes they change the subject, and sometimes they provide disapproving feedback. This is an example of a:A Stimulus class based on formal characteristicsB Response classC Stimulus class based on functional characteristicsD Stimulus class based on temporal location The correct answer and explanation is: The correct answer is […]

Caroline bought snacks for her team’s practice. She bought a bag of oranges for $2.21 and a 3-pack of juice bottles. The total cost before tax was $9.38. Write and solve an equation which can be used to determine z, how much each bottle of juice cost. The correct answer and explanation is: To solve

What is a computer network?a. A collection of interconnected computers and devices for communication and resource sharingb. A program that manages hardware resourcesC A set of protocols for coding and decoding datad. A system that allows multiple users to share a single computer The correct answer and explanation is: The correct answer is:a. A collection

State whether the following would be an observational study or an experiment: test the effects of breakfast on grades I ask my students if they ate breakfast a then compare the breakfast eaters grades to the non-breakfast eaters.This is an example of:Observational studyExperiment The correct answer and explanation is: This is an example of an

Angel Corporation produces calculators selling for $25.99. Its unit cost is $18.95. Assuming a fixed cost of $80,960, what is the breakeven point in units? The correct answer and explanation is: To calculate the breakeven point in units, we use the formula: Breakeven Point (units)=Fixed CostsSelling Price per Unit−Variable Cost per Unit\text{Breakeven Point (units)} = \frac{\text{Fixed Costs}}{\text{Selling Price per Unit} – \text{Variable Cost per

State whether the following would be an observational study or an experiment: test the effects of breakfast on grades I ask my students if they ate breakfast a then compare the breakfast eaters grades to the non-breakfast eaters.This is an example of:Observational studyExperiment The correct answer and explanation is: This is an example of an

If we say “The circle is blue,” what kind of observation are we making?MacroscopicMicroscopic The correct answer and explanation is: The correct answer is Macroscopic. When you say “The circle is blue,” you are making a macroscopic observation. This refers to the observation of objects or phenomena that can be seen with the naked eye,

To test the effects of breakfast on grades I ask my students if they ate breakfast and then compare the breakfast eaters grades to the non-breakfast eaters.This is an example of:Observational studyExperiment The correct answer and explanation is: The correct answer is Observational study. In an observational study, researchers observe and collect data on subjects

Researchers studying the “terra-cotta army,” the thousands of life-size statues of warriors found interred near the tomb of Emperor Qin Shi Huang of China, were shocked to realize that the shape of each statue’s ears, like the shape of each person’s ears,______ unique.Which choice completes the text so that it conforms to the conventions of

What is a database? (a) Organized collection of information that cannot be accessed, updated and managed (b) Collection of data or information without organizing (c) Organized collection of data or information that can be accessed, updated and managed (d) Organized collection of data that cannot be updated The correct answer and explanation is: The correct