Question

Which method of finding the mean would you not use if you have class intervals whose values are big but they are close to each other?

• A. Direct method
• B. Step deviation method
• C. Assumed Mean method
• D. Runge-Kutta Method

Answer 1

The correct option is A

Direct method

If you have class intervals whose values are big but they are close to each other, then it is easier to calculate mean using either the assumed mean method or the step-deviation method. This is because in direct method, with the big values, the mathematical calculations will be a big hassle. Hence, you will not use the direct method.