2nd Year Statistics Chapter 1 TestNormal Distribution

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. In a normal distribution , Q₁ is equal to:

   1. 

   2. 

   3. 

   4. 

2. In a standard normal distribution, Q₁ is equal to:

   1. 0.7979

   2. 0.6745

   3. -0.6745

   4. -0.7979

3. In normal distribution mean, median and mode are:

   1. Not equal

   2. Positive

   3. Equal

   4. None

4. In a normal distribution, the value of  are respectively:

   1. 0 & 3

   2. 3 & 0

   3. 0 & 1

   4. 1 & 3

5. The number of parameters of normal distribution is:

   1. One

   2. Two

   3. Three

   4. Four

6. In a normal distribution  of the area lies between the limits.

   1. 

   2. 

   3. 

   4. 

7. The two points containing the middle 68.27% area under a normal curve are:

   1. 

   2. 

   3. 

   4. None

8. The symmetry of the normal distribution about its mean indicates that:

   1. The distribution is bell shaped

   2. The area under the curve on the both sides of the mean is equal

   3. The two tails extend indefinitely on either sides of the mean

   4. All of these

9. The maximum ordinate of normal distribution at x=u is:

    

   1. Zero

   2. 

   3. 

   4. 

10. In a normal distribution, what perecentage of the area is contained with the limits ?

    1. 99.73%

    2. 95.45%

    3. 68.27%

    4. 95%