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Use tree diagrams for picks without replacement

10th grade (Year 11 in England) · 16 questions · Common Core: HSS.CP.B.8, HSS.CP.A.2 · England: GCSE Higher Probability

Name

Date

Score/ 16

  1. Question 1

    A playlist has 3 pop songs and 2 rock songs. Two different songs are picked at random. Find P(one of each type) as a fraction in simplest form.

    Answer(as a fraction)

  2. Question 2

    A bag has 3 red and 5 blue counters. Two are taken out without replacement. Find P(both red) as a fraction in simplest form.

    Answer(as a fraction)

  3. Question 3

    A box has 8 vanilla and 4 chocolate biscuits. Two are eaten at random. Find P(at least one chocolate) as a fraction in simplest form.

    Answer(as a fraction)

  4. Question 4

    A playlist has 7 pop songs and 4 rock songs. Two different songs are picked at random. Find P(one of each type) as a fraction in simplest form.

    Answer(as a fraction)

  5. Question 5

    A bag has 5 red and 2 blue counters. Two are taken out without replacement. Find P(both red) as a fraction in simplest form.

    Answer(as a fraction)

  6. Question 6

    A box has 3 vanilla and 3 chocolate biscuits. Two are eaten at random. Find P(at least one chocolate) as a fraction in simplest form.

    Answer(as a fraction)

  7. Question 7

    A playlist has 5 pop songs and 5 rock songs. Two different songs are picked at random. Find P(one of each type) as a fraction in simplest form.

    Answer(as a fraction)

  8. Question 8

    A bag has 6 red and 5 blue counters. Two are taken out without replacement. Find P(both red) as a fraction in simplest form.

    Answer(as a fraction)

  9. Question 9

    A box has 3 vanilla and 5 chocolate biscuits. Two are eaten at random. Find P(at least one chocolate) as a fraction in simplest form.

    Answer(as a fraction)

  10. Question 10

    A playlist has 5 pop songs and 2 rock songs. Two different songs are picked at random. Find P(one of each type) as a fraction in simplest form.

    Answer(as a fraction)

  11. Question 11

    A bag has 5 red and 3 blue counters. Two are taken out without replacement. Find P(both red) as a fraction in simplest form.

    Answer(as a fraction)

  12. Question 12

    A box has 4 vanilla and 3 chocolate biscuits. Two are eaten at random. Find P(at least one chocolate) as a fraction in simplest form.

    Answer(as a fraction)

  13. Question 13

    A playlist has 3 pop songs and 6 rock songs. Two different songs are picked at random. Find P(one of each type) as a fraction in simplest form.

    Answer(as a fraction)

  14. Question 14

    A bag has 5 red and 6 blue counters. Two are taken out without replacement. Find P(both red) as a fraction in simplest form.

    Answer(as a fraction)

  15. Question 15

    A box has 3 vanilla and 4 chocolate biscuits. Two are eaten at random. Find P(at least one chocolate) as a fraction in simplest form.

    Answer(as a fraction)

  16. Question 16

    A playlist has 2 pop songs and 8 rock songs. Two different songs are picked at random. Find P(one of each type) as a fraction in simplest form.

    Answer(as a fraction)

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Answer key: Use tree diagrams for picks without replacement

  1. 1. 3/5

  2. 2. 3/28

  3. 3. 19/33

  4. 4. 28/55

  5. 5. 10/21

  6. 6. 4/5

  7. 7. 5/9

  8. 8. 3/11

  9. 9. 25/28

  10. 10. 10/21

  11. 11. 5/14

  12. 12. 5/7

  13. 13. 1/2

  14. 14. 2/11

  15. 15. 6/7

  16. 16. 16/45