Computer Science
Suppose annual day of your school is to be celebrated. The school has decided to felicitate those parents of the students studying in classes XI and XII, who are the alumni of the same school. In this context, answer the following questions:
Which statistical technique should be used to find out the number of students whose both parents are alumni of this school ?
How varied are the age of parents of the students of that school ?
Answer
The statistical technique that should be used to find out the number of students whose both parents are alumni of the school is the mode, which involves counting how many students in classes XI and XII fit this criterion. The mode represents the most frequently occurring value.
To determine the variation in the age of parents of students at the school, the appropriate statistical technique is standard deviation.
Related Questions
Consider the temperature (in Celsius) of 7 days of a week as 34, 34, 27, 28, 27, 34, 34. Identify the appropriate statistical technique to be used to calculate the following:
- Find the average temperature.
- Find the temperature Range of that week.
- Find the standard deviation temperature.
A school teacher wants to analyse results. Identify the appropriate statistical technique to be used along with its justification for the following cases:
Teacher wants to compare performance in terms of division secured by students in Class XII A and Class XII B where each class strength is same.
Teacher has conducted five unit tests for that class in months July to November and wants to compare the class performance in these five months.
For the annual day celebrations, the teacher is looking for an anchor in a class of 42 students. The teacher would make selection of an anchor on the basis of singing skill, writing skill, as well as monitoring skill.
Which mode of data collection should be used?
How would you represent the skill of students as data?
Differentiate between structured and unstructured data giving one example.
The principal of a school wants to do following analysis on the basis of food items procured and sold in the canteen:
- Compare the purchase and sale price of fruit juice and biscuits.
- Compare sales of fruit juice, biscuits and samosa.
- Variation in sale price of fruit juices of different companies for same quantity (in ml).
Create an appropriate dataset for these items (fruit juice, biscuits, samosa) by listing their purchase price and sale price. Apply basic statistical techniques to make the comparisons.