Question 1
The blood groups of 30 students are recorded as follows
A, B, O, A, AB, O, A, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A
Prepare a frequency distribution table for the data.
The number of students who have a certain type of blood group is called the frequency of those blood groups. Frequency distribution table for the given data is given below.
Blood groupTally marksNumber of students(Frequency)A/||||/|||| ||12B/|||| |||8AB||||4O/|||| |6Total30