1st Year Statistics 2nd Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. The probability of drawing a king of spade from a pack of 52 cards is

   1. 

   2. 

   3. 

   4. 

2. Range can be calculated in open-end classes:

   1. Never

   2. Always

   3. Often

   4. Seldom

3. The weights used in a quantity index are:

   1. Percentages of total quantity

   2. Prices

   3. Average of quantities

   4. None of these

4. When a pair of dice is rolled, the sum of uppermost dots vary from:

   1. 0 to 10

   2. 1 to 11

   3. 2 to 19

   4. 2 to 12

5. The distribution is positively skewed if:

   1. Mean < Mode

   2. Mean > Mode

   3. Mean > Median

   4. Both (b) and (c)

6. Which method of construction of consumer price index number is the Laspeyre's index number?

   1. Aggregate expenditure method

   2. Family budget method

   3. Both (a) and (b)

   4. None of these

7. If , then A and B are

   1. Mutually exclusive

   2. Independent

   3. Not mutually exclusive

   4. None of these

8. The variance expresses the variability of data in ______ as unit of data.

   1. Square of unit

   2. Square root of unit

   3. Same unit

   4. All of these

9. Composite index number involves commodities:

   1. One

   2. Two

   3. Three

   4. More than one

10. When three coins are tossed simultaneously, P(3 heads) is

    1. 

    2. 

    3. 

    4. 

11. If X and Y are independent, then s.d. (X - Y) is equal to:

    1. 

    2. 

    3. S.D. (X) + S.D. (Y)

    4. S.D. (X) - S.D. (Y)

12. Paasche's Index Number:

    1. 

    2. 

    3. 

    4.