2. The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?

Analyzing and representing data through frequency distribution tables is a vital skill in Class 10 tuition coaching. As a registered tutor on UrbanPro.com, I'll guide you through creating a frequency distribution table for the given blood group data and determining the most common and rarest blood groups.

Heading 1: Organizing Blood Group Data: Let's begin by organizing the blood group data of 30 Class VIII students.

Heading 2: Creating a Frequency Distribution Table: A frequency distribution table summarizes the occurrences of each blood group.

Sub-heading 1: Blood Group Categories:

• A, B, O, AB

Sub-heading 2: Tallying Occurrences:

• Count the occurrences of each blood group and represent them using tally marks.

Sub-heading 3: Creating Frequency Columns:

• A: ____
• B: ____
• O: ____
• AB: ____

Sub-heading 4: Completing the Table:

• Fill in the tally marks corresponding to each blood group.

Sub-heading 5: Counting Total Students:

• Sum the tally marks to find the total number of students (should be 30).

Heading 3: Determining the Most Common and Rarest Blood Groups: Now, let's analyze the frequency distribution to identify the most common and rarest blood groups.

Sub-heading 1: Analyzing Frequency Counts:

• Check which blood group has the highest frequency count.

Sub-heading 2: Identifying Most Common:

• The blood group with the highest frequency count is the most common.

Sub-heading 3: Identifying Rarest:

• The blood group with the lowest frequency count is the rarest.

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