STA301 Midterm Past Paper 5

MIDTERM EXAMINATION

SPRING 2007 STA301 - STATISTICS AND PROBABILITY (Session - 5 Marks: 30 Time: 90min

Student Name:

Center Name/Code:

Exam Date: Tuesday, May 15, 2007

2. Do not ask any question about the contents of this examination from anyone.
3. You are allowed to use the calculator & Statistical tables in order to solve the questions.
4. For your convenience we are providing you the following symbols,

� ,∩, X or write Mean, s, or sd for standard deviation, s2 2 or sd2 or � log x variance for variance,for square root or whole square root. Question Marks Total

1. C

Q1. ( Marks: 1 )

Eye color of students is the example of:

1. Attribute
2. Discrete variable
3. Continuous variable
4. None of these

Q2. ( Marks: 1 )

If any value in data is zero, then it is not possible to have:

1. A.M
2. Median
3. Mode
4. H.M

Q3. ( Marks: 1 )

The standard deviation of c (constant) is:

1. C
2. Zero
3. None of these

Q4. ( Marks: 1 )

Scatter diagram is expressed as:

1. Curve
2. Lines
3. Dots
4. Rectangles

Q5. ( Marks: 1 )

The random variable “the number of heads” in tossing of two coins is :

1. Continuous variable
2. Discrete random variable
3. May be discrete or continuous random variable
4. None of these

Q6. ( Marks: 2 )

Define variable and constant.

Q7. ( Marks: 2 )

Define mutually exclusive events.