2nd Year Statistics Chapter 10 Online MCQ Test for 12th Class Statistics Chapter 10 (Normal Distribution)

The mean deviation (M.D) of a normal distribution is ________.

• 4/5 σ A
• 5/4 σ B
• 2/3 σ C
• None of these D

P(μ-2σ < X=< μ + 2σ)=

• 0.6827 A
• 0.9545 B
• 0.9973 C
• 0.9827 D

The normal distribution is --------------------distribution.

• positively skewed A
• negatively skewed B
• symmetrical C
• peaked D

• β₁ A
• β₂ B
• β₃ C
• S_k D

The moment Coefficient of kurtosis is

• β₁ A
• β₂ B
• Zero C
• m₂ D

The normal distribution is a _______.

• Positive A
• Negative B
• Discrete C
• Continuous D

The normal distribution is represented as_______

• N (μ,σ²) A
• N (n,p) B
• N (0,σ²) C
• None of these D

μ - 2σ to=μ + 2σ contains approximately_______ area.

• 75% A
• 50% B
• 95.45% C
• 99.73% D

The shape of the normal distribution is like

• J. A
• L B
• bell C
• circle D

The maximum ordinate of a normal curve is at X = ________.

• μ A
• σ B
• X̅ C
• S.D D

Points of inflexion of normal curve are at

• μ and σ A
• x=μ-σ and x=μ+σ B
• μ and 2σ C
• μ = o D

Second moment about mean is also called

• mean A
• variance B
• skewness C
• standard deviation D

The Quartile deviation (Q.D) of a normal distribution is_______.

• 4/5 σ A
• 5/4 σ B
• 2/3 σ C
• None of these D

The moment coefficient of skewness is

• β₁ A
• β₂ B
• S_k C
• m₃ D

In case of symmetrical distribution

• μ₁ = μ₂ = μ₃ = μ₄ A
• β₁ = β₂ B
• P₁ < P₂ C
• 
  D

In normal distribution.

• Mean > median > mode A
• Mean = median = mode B
• Mean < median < mode C
• None of these D

The total area under the normal curve is________.

• Zero A
• Equal B
• Unity C
• True D