MEASURES OF CENTRAL TENDENCIES

MEASURES OF CENTRAL TENDENCIES

Cikgu Mas

Speaker Funtastic Math PT3

Multiple Select

Are you ready to learn this topic?

• Yes

• No

Multiple Select

What do you expect from this session?

• Understand the concept

• A lot of KBAT questions

• Nothing

• I don't know

• I'm not sure

Multiple Choice

Data representation EXCEPT

• Pie Chart

• Frequency Polygon

• Histogram

• Line chart

Multiple Choice

What is the meaning of Mode?

• The sum of the data values is divided by the

  number of data

• The value located in the center of the data when the set of numbers is arranged in ascending order

• Set of data is the highest value of its frequency

• Set of data is the lowest value of its frequency

Multiple Choice

Is that any different calculation involved in grouped data and ungrouped data?

• Yes

• No

Multiple Choice

The table of frequency shows marks for an apptitude test for 30 students. Determine the modal class.

• 40 - 44

• 55 - 59

• 65 - 69

• 60 - 64

Multiple Choice

The table records the height of 30 saplings observed by Umeswary in a science experiment.

Calculate the mean of the height of the tree

• 20.5

• 24.5

• 17.5

• 19.5

Multiple Choice

Determine the type of measure of central tendencies that is suitable for the situations below.

The pie chart shows the favourite fruits of the students of Form 2 Gemilang.

• Mean

• Mode

• Median

Multiple Choice

The table shows the number of spelling errors made by Form 2 Amanah students when writing essay in Malay.

If the mean of the students’ spelling errors is 2.4, calculate the value of x.

• 1

• 4

• 6

• 3

Multiple Choice

Calculate the median for the following representation of data.

Dot plot indicates the number of students visiting the access centre in a week

• 4

• 5

• 3

• 2

Multiple Choice

The mean of four numbers is 14. If two numbers, x and x + 2 are added to the set of data, the new mean is 15. Calculate the value of x.

• 12

• 16

• 20

• 45

Multiple Choice

The stem-and-leaf table represent the distance, in km, by a group of runners during a cross-country event.

Determine mean

• 23.34

• 30

• 32.27

Multiple Select

Do you think your goal has been achieved for tonight's class?

• YES

• NO

• ONLY 50%