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🇺🇸 OAT (Optometry Admission Test) · flashcards
OAT (Optometry Admission Test) Quantitative Reasoning Flashcards
67 question-and-answer cards covering Quantitative Reasoning as it is examined in OAT (Optometry Admission Test). 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Quantitative Reasoning deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
What are the sine and cosine values for 0°, 30°, 45°, 60°, and 90°?
sin: 0, 1/2, √2/2, √3/2, 1; cos: 1, √3/2, √2/2, 1/2, 0.
What is the relationship between degrees and radians?
180° = π radians; multiply degrees by π/180 to get radians.
What is the difference between the mean, median, and mode?
Mean is the arithmetic average; median is the middle value when ordered; mode is the most frequently occurring value.
What is the range of a data set, and how is it calculated?
The range is the spread of the data: maximum value minus minimum value.
What is standard deviation a measure of?
The average amount that data values deviate (spread) from the mean; larger SD means more dispersion.
In a normal distribution, what percentage of data falls within one standard deviation of the mean (68-95-99.7 rule)?
About 68% within ±1 SD, 95% within ±2 SD, and 99.7% within ±3 SD.
What is the basic formula for the probability of an event?
P(event) = (number of favorable outcomes) / (total number of equally likely outcomes).
What is the probability rule for two independent events both occurring?
P(A and B) = P(A) × P(B).
What is the addition rule for the probability of A or B (mutually exclusive events)?
P(A or B) = P(A) + P(B); if not mutually exclusive, subtract P(A and B).
What is the formula for the number of permutations of n items taken r at a time?
nPr = n! / (n − r)! (order matters).
What is the formula for the number of combinations of n items taken r at a time?
nCr = n! / [r!(n − r)!] (order does not matter).
How do you read the value of a slice in a pie chart relative to the whole?
Each slice's percentage of the total = (slice's central angle / 360°), or read the labeled percent; multiply by the total to get the count.
When interpreting a line graph, what does the slope between two points represent?
The rate of change of the y-variable per unit change in the x-variable over that interval.
How do you set up and solve a proportion a/b = c/d for an unknown?
Cross-multiply (ad = bc), then solve the resulting equation for the unknown variable.
What is the formula relating distance, rate, and time?
Distance = rate × time (d = rt).
In a work-rate problem, how do you combine two workers' rates?
Add their individual rates (jobs per unit time); combined time = 1 / (sum of rates).
How many centimeters are in 1 meter, and millimeters in 1 centimeter?
1 meter = 100 cm; 1 cm = 10 mm.
How do you convert a quantity using dimensional analysis (unit factors)?
Multiply by conversion fractions equal to 1, arranged so unwanted units cancel and the desired unit remains.
How many milliliters are in 1 liter, and grams in 1 kilogram?
1 liter = 1000 mL; 1 kilogram = 1000 g.
What is the conversion between Celsius and Fahrenheit?
F = (9/5)C + 32; C = (5/9)(F − 32).
A good general strategy when a word problem seems complex: what should you do first?
Identify what is asked and what is given, define variables, then translate the words into equations before solving.
What estimation strategy helps eliminate wrong multiple-choice answers quickly?
Round numbers to convenient values to approximate the answer, then discard choices that are far off.
How can you check whether an algebraic answer is reasonable?
Substitute it back into the original equation/problem and verify the units and order of magnitude make sense.
What is the strategy of 'plugging in answer choices' (backsolving)?
Test the given answer choices in the problem's conditions—often starting with the middle value—until one satisfies all constraints.
What this deck covers
The Quantitative Reasoning deck follows the OAT (Optometry Admission Test) Quantitative Reasoning syllabus — 4 chapters and 13 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 16.8 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 76 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Quantitative Reasoning flashcards FAQ
How many Quantitative Reasoning flashcards are in this OAT (Optometry Admission Test) deck?
67 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these OAT (Optometry Admission Test) flashcards free?
Yes. The preview here is free to read with no signup, and the full 67-card deck is free inside the Examius app.
What do the Quantitative Reasoning cards cover?
They follow the OAT (Optometry Admission Test) Quantitative Reasoning syllabus — 4 chapters and 13 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.