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

The point of inflection in normal distribution are _______.

• μ - σ, μ + σ A
• μ - σ, μ + 2σ B
• μ, σ C
• None of these D

In case of normal distribution the area to the left of the mean and area to the right of the mean is

• positive  A
• negative B
• equal C
• unequal D

Normal distribution ranges from_______.

• 1,2,3,............∞ A
• -∞ to +∞ B
• 1,2,3,.........n C
• None of these D

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

• μ A
• σ B
• X̅ C
• S.D D

Second moment about mean is also called

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

The range of a normal distribution is

• —∞ to 1 A
• —∞ to 0 B
• —∞ to + ∞ C
• 0 to ∞ 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

In case of normal distribution maximum value of ordinate is

• μ A
• Zero B
• 
  C
• 
  D

In case of symmetrical distribution

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

The probability density function has ------------------ value for every value of x.

• negative A
• positive B
• minimum C
• maximum D

All odd ordered moments about mean are ______ in a normal distribution.

• Zero A
• Unity B
• Positive C
• Negative D

• β₁ A
• β₂ B
• β₃ C
• S_k D

In normal distribution.

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

The moment Coefficient of kurtosis is

• β₁ A
• β₂ B
• Zero C
• m₂ D

Normal distribution is

• unimodal A
• bimodal B
• trimodal C
• multimodal D

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 ( | Z | > a) =

• 2ø(a) - 1 A
• ø(a) B
• 2 ø (-a) C
• 1-ø(a) D