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SSAT (Secondary School Admission Test) Quantitative Reasoning: Data Analysis and Probability Flashcards
50 question-and-answer cards covering Quantitative Reasoning: Data Analysis and Probability as it is examined in SSAT (Secondary School 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: Data Analysis and Probability deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
In a pictograph, each book icon represents 5 books. A row shows 3.5 icons. How many books is that?
$3.5 \times 5 = 17.5$ books.
What is the purpose of a frequency table?
A frequency table lists each value or category alongside how many times it occurs (its frequency), organizing data so totals and patterns are easy to read.
How do you read a stem-and-leaf plot value like stem $3$ and leaf $7$?
The stem is the leading digit(s) and the leaf is the final digit, so stem $3$ and leaf $7$ represent the number $37$.
In a stem-and-leaf plot, how do you find the total number of data values?
Count all the leaves across every stem; each leaf represents one data value.
How can you find the mode quickly from a stem-and-leaf plot?
Look for a leaf digit that repeats within a single stem; the value occurring most often is the mode.
In a frequency table, how do you compute the mean?
Multiply each value by its frequency, sum those products, then divide by the total frequency: $\text{mean} = \frac{\sum (x \cdot f)}{\sum f}$.
What is the basic formula for the probability of a single event?
$P(\text{event}) = \frac{\text{number of favorable outcomes}}{\text{total number of equally likely outcomes}}$.
What is the range of possible values for any probability?
A probability is always between 0 and 1 inclusive: $0 \leq P \leq 1$. A probability of 0 means impossible; 1 means certain.
What is the probability of rolling a 4 on a fair six-sided die?
$P(4) = \frac{1}{6}$, since there is 1 favorable outcome out of 6 equally likely outcomes.
A bag has 3 red, 2 blue, and 5 green marbles. What is the probability of drawing a blue marble?
$P(\text{blue}) = \frac{2}{3+2+5} = \frac{2}{10} = \frac{1}{5}$.
What does it mean for two events to be independent?
Two events are independent if the occurrence of one does not affect the probability of the other (e.g., separate coin flips or die rolls).
What is the multiplication rule for the probability of two independent events both occurring?
$P(A \text{ and } B) = P(A) \times P(B)$.
What is the probability of flipping two coins and getting heads on both?
$P(\text{HH}) = \frac{1}{2} \times \frac{1}{2} = \frac{1}{4}$.
What is the probability of rolling a die and getting a 6, then flipping a coin and getting tails?
$\frac{1}{6} \times \frac{1}{2} = \frac{1}{12}$ (independent events multiplied).
What is a compound event in probability?
A compound event involves two or more simple events combined, such as 'A and B' or 'A or B' occurring together or in sequence.
For mutually exclusive events, what is the addition rule for $P(A \text{ or } B)$?
If A and B cannot happen at the same time, $P(A \text{ or } B) = P(A) + P(B)$.
What is the counting (fundamental) principle?
If one event can happen in $m$ ways and a second in $n$ ways, then the two together can happen in $m \times n$ ways. Multiply the number of choices for each stage.
Using the counting principle, how many outfits can you make from 4 shirts and 3 pairs of pants?
$4 \times 3 = 12$ outfits.
A meal has 3 appetizers, 5 entrees, and 2 desserts. How many different meals are possible?
$3 \times 5 \times 2 = 30$ meals.
How many two-digit codes can be formed using digits 0-9 if digits may repeat?
$10 \times 10 = 100$ codes.
What are complementary events, and what do their probabilities sum to?
Complementary events are an event and its opposite ('not the event'). Their probabilities sum to 1: $P(A) + P(\text{not } A) = 1$.
If the probability of rain is $0.3$, what is the probability it does NOT rain?
$P(\text{no rain}) = 1 - 0.3 = 0.7$ (the complement).
How are odds in favor of an event defined in terms of outcomes?
Odds in favor $= \frac{\text{favorable outcomes}}{\text{unfavorable outcomes}}$, written as favorable : unfavorable.
If the probability of an event is $\frac{2}{5}$, what are the odds in favor of it?
Favorable : unfavorable $= 2 : (5-2) = 2 : 3$.
What this deck covers
The Quantitative Reasoning: Data Analysis and Probability deck follows the SSAT (Secondary School Admission Test) Quantitative Reasoning: Data Analysis and Probability syllabus — 3 chapters and 11 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 16.7 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 89 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: Data Analysis and Probability flashcards FAQ
How many Quantitative Reasoning: Data Analysis and Probability flashcards are in this SSAT (Secondary School Admission Test) deck?
50 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these SSAT (Secondary School Admission Test) flashcards free?
Yes. The preview here is free to read with no signup, and the full 50-card deck is free inside the Examius app.
What do the Quantitative Reasoning: Data Analysis and Probability cards cover?
They follow the SSAT (Secondary School Admission Test) Quantitative Reasoning: Data Analysis and Probability syllabus — 3 chapters and 11 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.