Entry checkpoint

Entry checkpoint: a separate sample with explanations after your response.

Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.

1. What you will learn

Entry checkpoint: attempt the integer properties, strengthen, table analysis sample before instruction. Use the target of each question to decide which information matters, and record your initial response before reading its explanation.

2. Practice

How many positive divisors does 98 have?

3. Practice

A greenhouse adds screens over ventilation openings and subsequently fewer plants show insect damage. During the same period it also starts introducing predatory insects. A coordinator concludes that the intervention caused the improvement, arguing that screens prevent pest insects from entering. Which finding most strengthens the coordinator's causal explanation?

with predator use held constant, screened compartments receive fewer incoming pests and develop less damage
damage falls equally in unscreened compartments receiving the predators
Staff expected the intervention to help before it began.
The intervention was introduced after several months of discussion.
Some other organizations have adopted similar interventions.

4. Practice

Answer every part using the supplied sources. All parts must be correct.

Deliveries

Deliveries, audit 3. Counts refer to completed jobs in one week. Revenue is in hundreds of credits; hours are paid staff hours. No other jobs occurred.

Site	Jobs	Revenue	Hours
North	26	52	4
East	36	36	2
West	46	138	5
South	62	124	3

Deliveries, audit 3. Counts refer to completed jobs in one week. Revenue is in hundreds of credits; hours are paid staff hours. No other jobs occurred.

West has the greatest revenue per job.

North completes more jobs than East.

South and North have equal revenue per job.

5. What you can do now

Review the integer properties, strengthen, table analysis decisions in this mixed practice sample. Identify the particular restriction or evidence that changed your answer, and return to the corresponding worked lesson before trying a new case.