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

In a normal distribution β₁ = 0 and β₂ = __________.

• 2 A
• 4 B
• 3 C
• 5 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

The normal distribution is represented as_______

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

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

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

The maximum ordinance of the standard normal Curve is at Z = ______.

• 1.96 A
• 2.33 B
• 1 C
• 0 D

P ( | Z | > a) =

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

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

For normal distribution mean always lies between.

• Median and mode A
• Median and Q₁ B
• Median and Q₃ C
• None of these D

• β₁ A
• β₂ B
• β₃ C
• S_k D

Normal distribution is

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

In a normal distribution,_____= μ + 0.64745 σ

• Q₁ A
• Q₃ B
• μ C
• σ 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

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

• μ A
• σ B
• X̅ C
• S.D D

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

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

The normal distribution is a bell shaped_______ distribution.

• Discrete A
• Continuous B
• Symmetrical C
• Skewed 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