Statistic

Calculate the mean of the following data

• 5.5

• 15

• 7

• 10

Calculate the mean of the scores of 20 students in a mathematics test35

• 30

• 20

• 35

• 40

The abscissa of the point if intersection of the less than type and more than type O-give curves of a grouped data gives its

• Mean

• Median

• Mode

• All of these

Choose the statistical question:

• What time did you wake up this morning?

• What time do 12th graders wake up each morning during the school week?

For the following distribution, the sum of lower limits of the median class and modal class is

• 15

• 25

• 30

• 35

The upper limit of the median class is

• 7

• 17.5

• 18

• 18.5

The modal class is..

• 10-20

• 20-30

• 30-40

• 40-50

The method to calculate mean using this formula is called..

• Direct method

• Assumed mean method

• Step-deviation method

• Alternate method

This is the formula to calculate

• Average/mean

• Mode

• Median

• Deviation

What is the branch of mathematics dealing with the collection, organization, analysis, interpretation and presentation of data?

• Algebra

• Geometry

• Probability

• Statistics