MEAN

Poll

Are you ready?

• YES

• NO

Multiple Choice

Every 10th student entering the library is asked to participate in a survey about their reading habits

• Systematic Sampling

• Snowball Sampling

• Simple Random Sampling

• Stratified Random Sampling

Multiple Choice

A researcher selects participants based on their availability and willingness to participate

• Cluster Sampling

• Convenience Sampling

• Quota Sampling

• Purposive Sampling

Multiple Choice

A researcher stands outside a shopping mall and asks every 5th person who walks by to fill out a questionnaire

• Cluster Sampling

• Simple Random Sampling

• Systematic Sampling

• Purposive Sampling

Multiple Choice

A marketing team selects participants for a focus group by inviting individuals who have previously purchased their products

• Cluster Sampling

• Simple Random Sampling

• Convenience Sampling

• Purposive Sampling

Multiple Choice

A polling agency calls phone numbers randomly generated by a computer and asks the person who answers to participate in a political survey

• Cluster Sampling

• Simple Random Sampling

• Convenience Sampling

• Purposive Sampling

​Riddle Quest

Multiple Choice

I'm the balance point in a numerical crowd,

Add us all up, then divide, and you've found

The average, the midpoint, the fairest share,

In statistics, I'm the one you declare.

What am I?

• Mean

• Median

• Mode

• Range

Multiple Choice

In a list of numbers, I stand tall,

Not the highest, nor the lowest of all.

In the middle, I quietly reside,

Dividing the data, side by side.

What am I?

• Mean

• Median

• Mode

• Range

Multiple Choice

In a set of values, I hold sway,

The one that appears most, come what may.

Not the average, nor the middle one,

But the most frequent, when all's said and done.

What am I?

• Mean

• Median

• Mode

• Range

MEASURES OF CENTRAL TENDENCY

Objectives

• ​Define mean, median, and mode.

• Solve problems relevant to mean median and mode.

• Demonstrate appreciation for mean, median, and mode through real-life applications.

MEASURES OF CENTRAL TENDENCY

Statistical measure that identifies a single value as representative of an entire distribution

The 7-day heat index computed by PAG-ASA from April 20 to 26, 2024, is as follows:

Fill in the Blank

Arrange the given data in ascending order.

,

,

,

,

,

,

Fill in the Blank

Get the sum of the given data

40, 38, 42, 43, 44, 44, 44

Fill in the Blank

Divide the sum to the number of given data

40, 38, 42, 43, 44, 44, 44

.

Mean

Mean

• ​The mean is the average of the numbers.

• To calculate the mean, add up all the numbers, then divide by how many numbers there are.

• In other words, it is the sum divided by the count.

Mean

​Mean

​raw data

Mean

​raw data

summation

Mean

​raw data

summation

​number of raw data

Fill in the Blank

Arrange the given data in ascending order.

40, 38, 42, 43, 44, 44, 44

,

,

,

,

,

,

Fill in the Blank

What is the middle value?

40, 38, 42, 43, 44, 44, 44

Median

Median

​It is the middle of a sorted list of numbers.

Median

Fill in the Blank

Arrange the given data in ascending order.

40, 38, 42, 43, 44, 44, 44

,

,

,

,

,

,

Fill in the Blank

What is the most frequent occurring value?

40, 38, 42, 43, 44, 44, 44

Mode

Mode

The mode is simply the number which appears most often.

DATA

• ​ Class will be divided into 3 groups.

• Each group will gather data from each of its members based on the following categories: age, height, number of siblings

• Mean, median, and mode will be computed from the gathered data. It will then be presented in class.

Multiple Choice

It is the most frequently occurring value.

• Mean

• Median

• Mode

• Range

Multiple Choice

It is the middle value.

• Mean

• Median

• Mode

• Range

Multiple Choice

It is also termed as an average.

• Mean

• Median

• Mode

• Range

Fill in the Blank

From the given dataset, identify the mean:

5, 7, 9, 9, 10, 12, 15

.

Fill in the Blank

What is the value of the mode?

5, 7, 9, 9, 10, 12, 15

Objectives

• ​Define mean, median, and mode.

• Solve problems relevant to mean median and mode.

• Demonstrate appreciation for mean, median, and mode through real-life applications.

​Study:
Measures of Variability