1. When throwing two 6-sided dice, the sum of numbers ranges from 1 + 1 = 2 to 6 + 6 = 12. Event with probability 0: 'Getting a sum of 13' (or getting a negative sum). This is an impossible event because the highest possible total is 12. Event with probability 1: 'Getting a sum between 2 and 12 inclusiRead more

    When throwing two 6-sided dice, the sum of numbers ranges from 1 + 1 = 2 to 6 + 6 = 12.

    Event with probability 0: ‘Getting a sum of 13’ (or getting a negative sum).

    This is an impossible event because the highest possible total is 12.

    Event with probability 1: ‘Getting a sum between 2 and 12 inclusive’ (or getting a sum less than 13). This is a certain event because every possible outcome satisfies it.

     

    For more NCERT Solutions of Class 9 Ganita Manjari Chapter 7 The Mathematics of Maybe: Introduction to Probability Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-7/

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  2. The child has shirts {Red, Blue} and pants {Jeans, Khakis, Shorts}. Total number of outfit combinations is 2 x 3 = 6. Outfit 1 is (Red Shirt, Jeans), Outfit 2 is (Red Shirt, Khakis), Outfit 3 is (Red Shirt, Shorts), Outfit 4 is (Blue Shirt, Jeans), Outfit 5 is (Blue Shirt, Khakis) and Outfit 6 is (BRead more

    The child has shirts {Red, Blue} and pants {Jeans, Khakis, Shorts}. Total number of outfit combinations is 2 x 3 = 6.

    Outfit 1 is (Red Shirt, Jeans),

    Outfit 2 is (Red Shirt, Khakis),

    Outfit 3 is (Red Shirt, Shorts),

    Outfit 4 is (Blue Shirt, Jeans),

    Outfit 5 is (Blue Shirt, Khakis) and

    Outfit 6 is (Blue Shirt, Shorts).

    Thus, the sample space comprises exactly these 6 outfit combinations.

     

    For more NCERT Solutions of Class 9 Ganita Manjari Chapter 7 The Mathematics of Maybe: Introduction to Probability Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-7/

     

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  3. The sample space of candies in the bag is: S = {strawberry, lemon, mint} Total number of possible outcomes = 3. The event E consists of picking a strawberry candy: E = {strawberry} Number of favourable outcomes = 1. Using the formula for theoretical probability: P(E) = Number of favourable outcomesRead more

    The sample space of candies in the bag is:

    S = {strawberry, lemon, mint}

    Total number of possible outcomes = 3.

    The event E consists of picking a strawberry candy:

    E = {strawberry}

    Number of favourable outcomes = 1.

    Using the formula for theoretical probability:

    P(E) = Number of favourable outcomes / Total possible outcomes

    P(strawberry candy) = 1 / 3 (which is approximately 0.333 or 33.3%).

    Hence, the probability is 1 / 3.

     

    For more NCERT Solutions of Class 9 Ganita Manjari Chapter 7 The Mathematics of Maybe: Introduction to Probability Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-7/

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  4. (i) S = {HH, HT, TH, TT}. Favourable = {HH, HT, TH}. P(at least 1 head) = 3/4 = 0.75. (ii) S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Even = {2, 4, 6, 8, 10}. P(even) = 5/10 = 1/2 = 0.5. (iii) S = {1, 2, 3, 4, 5, 6}. Favourable = {5, 6}. P(> 4) = 2/6 = 1/3. (iv) Total balls = 3 + 2 + 1 = 6. Not red = 2Read more

    (i) S = {HH, HT, TH, TT}. Favourable = {HH, HT, TH}. P(at least 1 head) = 3/4 = 0.75.

    (ii) S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Even = {2, 4, 6, 8, 10}. P(even) = 5/10 = 1/2 = 0.5.

    (iii) S = {1, 2, 3, 4, 5, 6}. Favourable = {5, 6}. P(> 4) = 2/6 = 1/3.

    (iv) Total balls = 3 + 2 + 1 = 6. Not red = 2 blue + 1 green = 3. P(not red) = 3/6 = 1/2 = 0.5.

    (v) S = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT} (8 outcomes). Favourable = {HHT, HTH, THH}. P(exactly 2 heads) = 3/8 = 0.375.

     

    For more NCERT Solutions of Class 9 Ganita Manjari Chapter 7 The Mathematics of Maybe: Introduction to Probability Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-7/

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  5. (i) Not equally likely: A normal working car usually starts, depending on mechanical condition rather than pure chance. (ii) Equally likely: A fair coin is balanced, giving heads and tails an equal chance of 1/2 each. (iii) Equally likely: A fair 6-sided die gives each number from 1 to 6 an identicaRead more

    (i) Not equally likely: A normal working car usually starts, depending on mechanical condition rather than pure chance.

    (ii) Equally likely: A fair coin is balanced, giving heads and tails an equal chance of 1/2 each.

    (iii) Equally likely: A fair 6-sided die gives each number from 1 to 6 an identical probability of 1/6.

    (iv) Not equally likely: Blue marbles (7) outnumber red marbles (3), making blue more likely.

    (v) Equally likely: Biologically, a newborn being a boy or a girl is equally likely with probability 1/2.

     

    For more NCERT Solutions of Class 9 Ganita Manjari Chapter 7 The Mathematics of Maybe: Introduction to Probability Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-7/

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