**Question:**

**Given below is a frequency distribution table. Read it and answer the question that follow.**

**(a) What is the lower limit of the second class interval?**

**(b) What is the upper limit of the last class interval?**

**(c) What is the frequency of the third class?**

**(d) Which interval has a frequency of 10?**

**(e) Which interval has the lowest frequency?**

**(f) What is the class size?**

**Solution:**

**(a) What is the lower limit of the second class interval?**

The lower limit of the second class interval 20 – 30 is 20.

**(b) What is the upper limit of the last class interval?**

The upper limit of the last class interval 50 – 60 is 60.

**(c) What is the frequency of the third class?**

The frequency of the third class 30 – 40 is 4.

**(d) Which interval has a frequency of 10?**

Second class interval 20 – 30 has a frequency of 10.

**(e) Which interval has the lowest frequency?**

Third interval 30 – 40 has the lowest frequency i.e. 4.

**(f) What is the class size?**

The difference between the upper and lower limit of a class interval is called the Size of the class interval.

Size = Upper limit – Lower limit

= 20 – 10

= 10