A sample space has 6 equally likely outcomes. The probability of an event with 2 outcomes is: MCQ with Answer and Explanation

A sample space has 6 equally likely outcomes. The probability of an event with 2 outcomes is:
A. 1/3
B. 2/3
C. 1/6
D. 1/2
Answer: Option A
Solution (By JKSSB Mock Tests)
P = 2/6 = 1/3.

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Practice More Statistics Questions

Question #1
Infant mortality rate and life expectancy at birth are generally:
A. Equal
B. Uncorrelated
C. Positively correlated
D. Negatively correlated

Correct Answer: Option D


Explanation:
Higher IMR is associated with lower life expectancy.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Paasche price index is calculated as:
A. Σ(p₁q₀)/Σ(p₀q₀) × 100
B. Σ(p₁q₁)/Σ(p₀q₁) × 100
C. Σ(p₁q₁)/Σ(p₀q₀) × 100
D. √[Σ(p₁q₀)/Σ(p₀q₀) × Σ(p₁q₁)/Σ(p₀q₁)] × 100

Correct Answer: Option B


Explanation:
Paasche index = Σ(p₁q₁)/Σ(p₀q₁) × 100, using current period quantities (q₁) as weights, which may understate inflation due to substitution effects but reflects current consumption patterns.

This question belongs to: Accountancy and Statistics Statistics
Question #3
If P(A)=0.4, P(A∪B)=0.7, then the probability of B will be maximum when A and B are:
A. A is a subset of B
B. B is a subset of A
C. Independent
D. Mutually exclusive

Correct Answer: Option A


Explanation:
P(A∪B)=P(A)+P(B)-P(A∩B). To maximize P(B) given P(A∪B)=0.7 and P(A)=0.4, set P(A∩B)=P(A)=0.4 (i.e., A⊂B). Then 0.7=0.4+P(B)-0.4 => P(B)=0.7 max.

This question belongs to: Accountancy and Statistics Statistics