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Probability

NCERT Exemplar Ch 13

CBSE_NCERT_EXEMPLAR_CH13

Grade 10

Question:

Which of the following cannot be the probability of an event?

$\dfrac{1}{3}$
$0.1$
$3\%$
$\dfrac{17}{16}$

Step-by-Step Solution

Key Concept: For any event $E$, $0 \leq P(E) \leq 1$. A probability cannot exceed 1.

Stepwise Solution:

$\dfrac{17}{16} = 1.0625 > 1$, which is impossible for a probability. [1.0 Mark]

Marking Scheme:

• Identifying $17/16 > 1$: 1.0 Mark

Correct Answer: $\dfrac{17}{16}$

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