Flashcards and recall.

Try this with General Mathematics

1. Write one prompt per card. Use definitions, explanations or examples from your current topic.
2. Answer aloud before turning the card. Split a card if it asks for several unrelated facts.
3. Set aside missed cards and revisit them in a later session.

View General Mathematics resources on ATARMAXXING ↗

Recall topics

• What is Pearson's r when the correlation is perfect positive?
• What is Pearson's r when the correlation is perfect negative?
• What does Pearson's r ≈ 0 indicate about the linear relationship?
• What strength threshold does |r| > 0.8 represent?
• What strength threshold does 0.5 < |r| ≤ 0.8 represent?
• What strength threshold does 0.3 < |r| ≤ 0.5 represent?
• What strength threshold does |r| ≤ 0.3 represent?
• What does the sign of r indicate?
• How do you interpret R² = 0.85?
• What is the relationship between Pearson's r and R²?
• What does the gradient (slope) represent in a regression equation y = a + bx?
• What does the y-intercept (a) represent in the regression equation y = a + bx?
• What are the four steps to calculate a centred moving average for even-period data?
• For a 4-period centred moving average, how many data points are lost?
• Write the formula for a seasonal index for a specific quarter/season.
• How do you deseasonalise a time series value?
• Write the explicit rule for an arithmetic sequence.
• Write the recurrence relation for an arithmetic sequence.
• Write the explicit rule for a geometric sequence.
• Write the recurrence relation for a geometric sequence.
• How is distance calculated along Earth using latitude/longitude on a sphere?
• If two cities are on the same latitude line, how do you find the distance between them using longitude?
• Convert 1 degree of longitude into minutes of time.
• Convert 15 degrees of longitude into hours of time.
• Which direction is the International Date Line and what happens when you cross it westward?
• State the critical principle: correlation vs causation.
• Define a trend component in time series analysis.
• Define seasonal component in time series analysis.
• Define cyclical component in time series analysis.
• Define irregular (or random) component in time series analysis.
• Compound Interest Formula
• Compound Interest Recurrence Relation
• Reducing Balance Loan Recurrence
• Annuity Present Value Formula
• Annuity Future Value Formula
• Perpetuity Present Value Formula
• Annuity Formula Components: n
• Annuity Formula Components: r
• Annuity Formula Components: d
• Graph: Vertex Degree Definition