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Mth – BASIC STATISTICS

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1

What is the probability of rolling an odd number on a fair die?

2

What is the weighted mean of scores 5, 7, 9 with weights 2, 3, 1 respectively?

3

What is the mean of the data: 4, 8, 6, 5, 3?

4

For ungrouped data, the median is the:

5

A bag contains 3 red balls and 5 blue balls. What is the probability of drawing a red ball?

6

In a frequency distribution, the class interval 10-20 has class mark:

7

What is the median of: 3, 5, 7, 9, 11, 13?

8

If each value in a data set is multiplied by 2, the new mean is:

9

The estimated probability of an event based on 100 trials is 0.4. How many times did the event occur?

10

The mode of the data: 1, 1, 2, 2, 2, 3, 4 is:

11

A histogram differs from a bar chart because:

12

If a coin is tossed once, the probability of getting heads is:

13

The relative frequency of an event can be used to estimate:

14

In a frequency distribution, what does the class width represent?

15

Find the mode of: 5, 8, 8, 10, 12, 12, 12, 15.

16

In a frequency distribution, the sum of all relative frequencies is:

17

A frequency polygon is a:

18

A frequency polygon is drawn by joining the midpoints of the tops of the bars of a:

19

What is the probability of drawing an ace from a standard deck of 52 cards?

20

What is the relative frequency of an event if it occurs 25 times out of 100 trials?

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