Quizalize logo
placeholder image to represent content

Wk 6: Probability of Union of Two Events

Quiz by Christlie Rose Nicolas

Grade 10
Mathematics
Philippines Curriculum: Grades K-10 (MELC)

Feel free to use or edit a copy

includes Teacher and Student dashboards

Track each student's skills and progress in your Mastery dashboards

With a free account, teachers can
  • edit the questions
  • save a copy for later
  • start a class game
  • automatically assign follow-up activities based on students’ scores
  • assign as homework
  • share a link with colleagues
  • print as a bubble sheet

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes
10 questions
Show answers
  • Q1

    When does the union of two events occur?

    Event A and event B are mutually exclusive

    Either event A or event B occurs

    Both event A and event B occur

    Neither event A and event B occur

    120s
    M10SP-IIIg-1
  • Q2

    What do you call the collection of all outcomes that is an element of one or the other of the sets A and B, or both of them?

    Complement

    Intersection

    Condition

    Union

    120s
    M10SP-IIIg-1
  • Q3

    In the formula for finding the probability of a union of two events: P(A U B) = P(A) + P(B) – P(A ∩ B), why is P(A ∩ B) subtracted from P(A) + P(B)?

    P(A ∩ B) has been counted twice through P(A) and P(B).

    Either A or C

    This rule determines the probability of event A or B occurring, not A and B, so this factor is subtracted.

    There is no explanation other than it’s just a part of the rule

    120s
    M10SP-IIIg-1
  • Q4

    From a deck of 52 cards, what is the probability of drawing a number card or a spade?

    \frac{49}{52}

    40

    49

    \frac{10}{13}

    120s
    M10SP-IIIi-j-1
  • Q5

    Two dice are tossed at the same time, what is the probability of getting a sum greater than 10?

    3

    \frac{1}{12}

    \frac{1}{3}

    \frac{1}{13}

    120s
    M10SP-IIIi-j-1
  • Q6

    Fifteen balls in a jar are numbered from 1 to 15. A ball is drawn at random. What is the probability that the number on the ball is less than 6 or even?

    \frac{2}{15}

    \frac{2}{3}

    \frac{7}{15}

    \frac{5}{15}

    120s
    M10SP-IIIi-j-1
  • Q7

    What is P(A∩B) if P(A) = 0.65, P(B) = 0.30 and P(A∪B) = 0.75?

    0.20

    0.65

    0.15

    0.30

    120s
    M10SP-IIIi-j-1
  • Q8

    Mang Pepito has a farm with chickens and pigs. 27% are chickens and 39% are pigs. What is the probability that an animal chosen in random is either a chicken or a pig?

    0.66

    0.39

    0.73

    0.12

    120s
    M10SP-IIIi-j-1
  • Q9

    In a class of 29 students, 15 like Science and 21 like Math. They all like at least 1 of the two subjects. What is the probability that a student chosen in random likes Math or Science?

    \frac{14}{29}

    1

    \frac{7}{29}

    \frac{15}{29}

    120s
    M10SP-IIIi-j-1
  • Q10

    What is the probability of getting a male student or student whose favorite is Network 2?

    Question Image

    \frac{12}{25}

    \frac{31}{50}

    \frac{17}{100}

    \frac{31}{100}

    120s
    M10SP-IIIi-j-1

Teachers give this quiz to your class