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Maths M.C.Q (1 Marks)

Probability · CBSE STD 10 (CBSE - English Medium). 204 questions.

Questions · Page 5 of 5

M.C.Q (1 Marks)

MCQ 2011 Mark
If probability of success is $0.9 \%$, then probability of failure is
  • A
    0.91
  • B
    0.091
  • C
    99.1
  • ✓
    0.991
Answer
Correct option: D.
0.991
(d):Probability of failure $=1$ - Probability of success
$=1-\frac{0.9}{100}=1-\frac{9}{1000}=\frac{1000-9}{1000}=\frac{991}{1000}=0.991$
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MCQ 2021 Mark
Which of the following cannot be the probability of an event?
  • A
    $\frac{1}{2}$
  • B
    1
  • C
    $0$
  • ✓
    1.5
Answer
Correct option: D.
1.5
(d):For probability of an event $E, 0 \leq P(E) \leq 1$.
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MCQ 2031 Mark
The probability of a certain event is
  • A
    $0$
  • ✓
    1
  • C
    $1/2$
  • D
    -1
Answer
Correct option: B.
1
(b):The probability of a certain event is always 1 .
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MCQ 2041 Mark
A coin is tossed twice. The probability of getting at least one head is -
  • A
    $1 / 4$
  • B
    $1 / 2$
  • ✓
    $3 / 4$
  • D
    1
Answer
Correct option: C.
$3 / 4$
C
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M.C.Q (1 Marks) - Page 5 - Maths STD 10 Questions - Vidyadip