MAT105 QUIZ

Another name for the cummulative Frequency curve is

• Line Graph

• Ogive

• Frequency Polygon

• Quadratic Curve

The scientific method for collecting, organizing, summarizing, presenting and analyzing data is

• Mathematics

• Statistics

• Experiments

• Equations

The geometric mean of xy², yz², x⁵z is

• xyz

• xyz²

• xy²z

• x²yz

For a good questionnaire, the questions must not be

• Short and direct

• Consistent

• Unbiased

• Complex calculations

_____ can be defined as the number of times a variable occurs

• Mode

• Mean

• Median

• Frequency

The lower and upper values of classes that mark common

points between classes are called

• Class Limits

• Class

  Boundaries

• Class Intervals

• Class Marks

If the total students in a faculty is 90 of which 30, 15, 10, 11 and 24

are in Economics, Sociology, Geography , Accountancy and Political

Science respectively, then the angle subtended by Sociology on a pie

chart is

The arithmetic mean of 5,5,5,5,5,7,7,7,8,8,8,8,6,6,4,4 is

• 6.125

• 7

• 8

• 6.31

If the standard deviation of a set of data is 3, what is the

variance?

• 1.732

• 3

• 9

• 27

Obtain the value of x if the arithmetic mean of 2, 5 + x, x −

3, 13, 21 is 14

• 12

• 13

• 15

• 16