Question

1Arrange data is known as ______________ data


2. Difference of two successive class Mark is known as ______________ .


3. The formula which is used to find the area of an equilateral triangle is ________________ .


4. The difference between maximum and minimum observation is called ________________ .


5. The midpoint of a class is called________ .

​

Answer 1

1. arrayed data.
2. class interval
3. A = ¼(√3a2)
4. Range
5. the class mark.