Organisation of Data - Online Test
Q1. A range of values which incorporates a set of items is called
Answer : Option B
Explaination / Solution:
The range of values of a given class is called a class interval, the boundaries of an interval are called class limits, and the middle of a class interval is called the class mark
Q2. Difference between upper or lower limits
Answer : Option A
Explaination / Solution:
The range of values of a given class is called a classinterval. It is defined as the difference between the upper class limit and the lower class limit.
Q3. Average value of the upper and lower limits
Answer : Option B
Explaination / Solution:
The mid-points of the class interval is obtained by calculating the mean of the lower and the upper limits of the intervals.The mid-points of class-intervals of various class group are called mid-values. MV= (Lower limit + Upper limit) / 2.
Q4. An open-end class is the class which lacks
Answer : Option B
Explaination / Solution:
If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess “open ended” classes. A class has either no lower class limit or no upper class limit in a frequency table is called an open-end class.
Q5. Following are the types of frequency distribution except
Answer : Option D
Explaination / Solution:
The repetition of number is a data set is termed as frequency of that particular number or the variable in which that number is assigned. The frequencies of variables in a data are to be listed in a table. This table is known as frequency distribution table and the list is referred as frequency distribution.
There are many types of frequency distributions
- Grouped frequency distribution
- Ungrouped frequency distribution
- Cumulative frequency distribution
- Relative frequency distribution
- Relative cumulative frequency distribution
Q6. Inclusive series
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. The series in which lower limit of the class interval or the upper limit of last class interval is missing
Answer : Option C
Explaination / Solution:
A class has either no lower class limit or no upper class limit in a frequency table is called an open- end class. An open ended distribution means that one or more of your classes is open-ended. In other words, it doesn't have a boundary.
Q8. Which number of tally bar will cross out all previous tallies
Answer : Option B
Explaination / Solution:
Tally marks are a quick way of keeping track of numbers in groups of five. One vertical line is made for each of the first four numbers; the fifth number is represented by a diagonal line across the previous four.
Q9. Series in which frequencies are continuously added corresponding to each class interval in the series
Answer : Option A
Explaination / Solution:
The total frequency of all classes less than the upper class boundary of a given class is called the cumulative frequency of that class. “A table showing the cumulative frequencies is called a cumulative frequency distribution”.
Q10. A characteristic of interest for the elements is
Answer : Option D
Explaination / Solution:
No Explaination.
