Test 1

Determine the linear function of the line that goes through points (1, 11) and (3, 19)?

• y = 7 + 3x

• y = x + 21

• y = x - 3

• y= 4x + 7

Simultaneous Equations solve for X and y

6x+3y = 42

5x-6y = -16

• x = 4

  y = 6

• x = 9

  y = 6

• x = 6

  y = 4

• x = 10

  y = 5

Which type of graph is used to illustrate Qualitative data

• Frequency Polygon

• Cumulative Frequency Polygon

• Histogram

• Bar Chart

The most frequently occurring value in a data set

• mean

• mode

• median

• percentile

In a data set ordered from lowest to highest the data which lies below 50% is:

• mode

• median

• mean

• none of the above

Statistic which measures the average value:

• mean

• mode

• median

• none

if the data set has x̄ = 16 and Σx = 336 how many values in the set

• 21

• 19

• 16

• 15

Mode of the data set:

16 24 18 16 24 18 24

• 18

• 24

• 19,14

• 16

The term used to describe the length of the outline of a shape

• radius

• perimeter

• breadth

• diameter