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

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

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

Total probability under the normal curve is

• 1 A
• 0 B
• -1 C
• ∞ D

For normal distribution mean always lies between.

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

The moment coefficient of skewness is

• β₁ A
• β₂ B
• S_k C
• m₃ D

The normal distribution is a bell shaped_______ distribution.

• Discrete A
• Continuous B
• Symmetrical C
• Skewed D

Normal distribution is

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

The shape of the normal distribution is like

• J. A
• L B
• bell C
• circle D

The normal distribution is a _______.

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

In a normal distribution,_____= μ + 0.64745 σ

• Q₁ A
• Q₃ B
• μ C
• σ D

All odd order moments about mean are

• unique A
• zero B
• different C
• one D

• β₁ A
• β₂ B
• β₃ C
• S_k D

If X - N (50,25), then=σ = ________.

• 3 A
• 5 B
• 25 C
• 50 D

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

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

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

• 1.96 A
• 2.33 B
• 1 C
• 0 D

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

• 2 A
• 4 B
• 3 C
• 5 D