Measures of Position

It is the measure used in statistics indicating the value below which a given percentage of observations in a group of observations falls.

• Decile

• Percentile

• Quartile

• Range

What is a quartile?

• It divides data into three points.

• Values that divide your data into quarters.

• A useful concept similar to the median.

• All of the above.

It is where the point in a distribution below which 75% of the cases lie?

• Q₁

• Q₂

• Q₃

• Q₄

Deciles divide a distribution into how many parts?

• 4

• 10

• 25

• 100

The measure that is most appropriate in determining the typical size of a pair of shoes sold is...

• mode

• mean

• median

• quartile

Erich gets 82, 87, 86 and x as her grades in Mathematics subject. What must be the value of x such that her final rating remains as 86?

• 90

• 89

• 88

• 87

In an examination, the mean score of 18 boys is 20 and for 22 girls the mean score is 23. Find the mean of the combined group.

• 21.25

• 21.10

• 21.65

• 21.00

Use the data below, the following are the scores of 16 students who played flappy bird game.

{3, 6, 7, 5, 10, 42, 111, 12, 15, 55, 8, 12, 38, 40, 68, 43}

What is P₇₅?

• 38

• 40

• 42

• 43

Use the data below, the following are the scores of 16 students who played flappy bird game.

{3, 6, 7, 5, 10, 42, 111, 12, 15, 55, 8, 12, 38, 40, 68, 43}

What is D₅?

• 8

• 10

• 12

• 15

Use the data below, the following are the scores of 16 students who played flappy bird game.

{3, 6, 7, 5, 10, 42, 111, 12, 15, 55, 8, 12, 38, 40, 68, 43}

What is Q₁?

• 5

• 6

• 7

• 8