COUNTRY

United States

ALL CATEGORIES

GOAL

AMC 10

AMC Class 12

Algebra 2

Algebra1

Calculus

Class 6

Class 7

Class 8

High School Geometry

IGCSE X

Others United States

PreCalculus

Reactivity IB Chem

Structure IB Chem

Trigonometry

MEDIUM

SUBJECT

PreCalculus

SORT:

BY LEVEL

English > Maths > Ohio State > Probability And Combinatorics

Question

Level

Action

A company surveys people in a city to find the type of cell phone plans they have and which provide......

Level 1

Sam is picking fruit from a basket that contains many different kinds of fruit. Which set of events ......

Level 1

The probability of flipping a fair coin and heads landing face up is $$0.5$$. The probability of ro......

Level 1

Probabilities for two events, event $$A$$ and event $$B$$, are given.
$$P(A \quad \text{and} \quad......

Level 1

Bryan records the number of hours he sleeps each night for several days and whether it is raining in......

Level 1

A university determined the number of students pursuing different degrees, by gender. Some of the re......

Level 1

During a 90-day semester, a student records whether he arrives at school on time and whether he goes......

Level 1

Josh has a bag containing pieces of candy. The bag contains 10 red circular pieces, 10 red square pi......

Level 1

Events $$Q$$ and $$R$$ are independent events, such that $$\frac{P(Q \cap R)}{P(R)}=\frac{4}{5}$$ Wh......

Level 2

Events $$Q$$ and $$R$$ are independent events, such that $$\frac{P(Q \cap R)}{P(R)}=\frac{4}{5}$$ Wh......

Level 2

Hernan randomly selects a book from his library. He calculates the probabilities given.
$$P($$ hardc......

Level 2

Francisco asks the students in his school what pets they have. He studies the events shown.
- Eve......

Level 2

Two events, $$A$$ and $$B$$, are independent.
$$P(A)=0.3$$
$$P(A$$ and $$B)=0.24$$
What is ......

Level 2

A total of 200 people attend a party, as shown in the table.
A person is selected at random to win ......

Level 2

The table shows when the tickets for a concert are sold and the types of tickets that are sold.
![]......

Level 2

A soccer coach determines that there is a $$50 \%$$ chance that a star player, Ralph, will play in a......

Level 2

A total of $${5 0}$$ ($$30$$ girls and $$20$$ boys)students play either soccer or lacrosse.
- 20 g......

Level 2

The two-way table shows the number of births, in thousands, in the United States for the years 2010 ......

Level 2

Events $$A$$ and $$B$$ are independent with $$P(A$$ and $$B)=0.25$$
Enter possible probabilities fo......

Level 2