Statistics Pre-test

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1 point

The class centre for a class interval of 20–24 is:

1 point

The complement of 3/11 is?

8/11

3/11

11/11

0.2727

1 point

The mode is:

The average set of scores

the middle score of a set of scores

A score that occurs the most

The difference between the highest and lowest score

1 point

In a Venn diagram, the notation used to represent the complement of A is:

1 point

The mean is

the middle score of a set of scores

the difference between the highest and lowest score

the average set of scores

the score that occurs the most

1 point

The median is

the difference between the highest and lowest score

the score that occurs the most

the middle score of a set of scores

the average set of scores

1 point

A card is drawn from a normal pack. What is the probability it is a diamond?

1/2

1/13

1/52

1/4

1 point

The list of all possible outcomes is called

the probability

the complement

an outcome

the sample space

1 point

My fruit bowl contains five bananas, four apples, one orange and five peaches. If i choose one piece of fruit from the bowl at random, the probability of a banana is?

1/3

9/15

10/15

4/15

10.

1 point

Twenty cards, each with a different number from 1 to 20 written on it, are placed in a hat. One number is drawn. What is the probability it is a number divisible by 3?

3/10

3/19

3/20

1/5

11.

1 point

The range is

the difference between the highest and lowest score

the middle score of a set of scores

the score that occurs the most

the average set of scores

12.

1 point

The probability of getting a 3 on a die is?

3/6

1/6

1/3

6/6

13.

1 point

The mode for the set of scores 8, 3, 5, 1, 8 is

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