class intervals in the economy 1st puc
Answers
Answer:
1st PUC Economics Organisation of Data TextBook Questions and Answers
Question 1.
Which of the following alternatives is true?
i) The class midpoint is equal to:
a. The average of the upper class limit and the lower class limit.
b. The product of upper class limit and the lower class limit.
c. The ratio of the upper class limit and the lower class limit
d. None of the above
Answer:
a. The average of the upper class limit and the lower class limit.
ii) The frequency distribution of two variable is known as
a. Univariate Distribution
b. Bivariate Distribution
c. Multivariate Distribution
d. None of the above
Answer:
b. Bivariate Distribution
KSEEB Solutions
iii) Statistical calculation is classified data are based on
a. the actual values of observations
b. the upper class limits
c. the lower class limits
d. the class midpoints
Answer:
d. the class midpoints
iv) Under Exclusive method
a. the upper class limit of a class is excluded in the class interval
b. the upper class limit of a class is included in the class interval
c. the lower class limit of a class is excluded in the class interval
d. the upper class limit of a class is included in the class interval
Answer:
a. the upper class limit of a class is excluded in the class interval
v) Range is the
a. difference between the largest and the smallest observations
b. difference between the smallest and the largest observations.
c. average of the largest and the smallest observations
d. ration of the largest to the smallest observation
Answer:
a. difference between the largest and the smallest observations
Question 2.
Can there be any advantage in classifying things? Explain with an example from your daily life.
Answer:
Advantage of Classifiction: