Grade 9 · Algebra
This quiz helps revise “Probability and statistics” in Algebra for grade 9. It has 25 questions in five categories: Chance in numbers, Trials and frequency, Center of data, Tables and graphs, Sampling wisely. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What is the probability of getting heads in one toss of a fair coin?
What is the probability of rolling a number greater than 4 on a fair six-sided die?
A bag has 4…
In the gameTwo fair coins are…
In the gameTwo fair six-sided dice…
In the gameAn event occurred 5 times in 25 trials. What is its relative frequency as a percentage?
In 50 rolls of a die, a six appeared 18 times. What is its relative frequency as a decimal?
An event was observed…
In the gameIn 1000 trials, an…
In the gameAn event occurred in…
In the gameWhat is the value that occurs most often in a data set called?
Which statistic divides ordered data into two halves containing equal numbers of observations?
Which statistic is found…
In the gameWhat is the average…
In the gameFor 2, 7, 11…
In the gameWhat is the graph type with separate bars representing different categories called?
What is the graph that groups numerical data into intervals with touching bars called?
What is the display…
In the gameA value occurs 12…
In the gameThree groups have frequencies…
In the gameWhat is the part of a population that is actually studied called?
All names are mixed and the required number are drawn by chance. What selection method is this?
A school sports survey…
In the gameA survey includes 72…
In the gameOf 120 randomly chosen…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.