XI_Maths_Statistics_6 Online Test

The following questions consist of two statements. One labelled as the Assertion (A) and the other as the Reason (R). You are to examine these two statements carefully and answer the questions using the coeds given below: Codes: Assertion (A): A sample-enquiry makes feasible, the collection of much more detailed information than census-enquiry. Reason (R) : The population involved in sample-equiry is less as compared to the census-enquiry
Both A and R true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true, R is false
A is false, R is true
/
Both A and R true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true, R is false
A is false, R is true
The following questions consist of two statements. One labelled as the Assertion (A) and the other as the Reason (R). You are to examine these two statements carefully and answer the questions using the coeds given below: Codes: Assertion (A): In its market survey, a company dealing in ready-made shirts, tries to determine the mean of the data collected for ascertaining the size requirements of maximum number of users. Reason (R): Model is the value, which occurs with greatest frequency.
Both A and R true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true, R is false
A is false, R is true
The cumulative frequency distribution is represented by:
ogive
Bar diagram
Logistic curve
Histogram
A student represents his scores in Mathematics, MATHEMATICS, Statistics, SSC, CAT, MAT, Bank PO and Economics in a pie chart. The central angle for Mathematics is 120o. He scored 96 in MATHEMATICS, Statistics, SSC, CAT, MAT, Bank PO and 84 in Economics. His score in Mathematics is:
86
88
90
92
Consider the following statement: If in a frequency table, the class intervals are 40-44, 45-49, 50-54, etc, then when made continuous, they will be 39.5-44.5-49.5, 49.5-54.5 etc. This statement is:
Wrong as 40-44 actually means 40-44.999…..etc and hence when made continuous, they will be 40-45, 45-50, 50-55 etc.
Wrong as there are no readings between 44 and 45, between 49 and 50 etc. and hence the correct intervals are 40-44, 45-49 etc.
Correct although the interval is actually 40-45 etc.., there is the possibility of recording errors at each interval, namely 40, 45, 50 etc. and hence the intervals should be taken as 39.5-44.5, 44.5-49.5, 49.5-54.5 etc.
Correct because the mid-values of 40-44, 45-49, 50-54 etc. and 39.5-44.5, 44.5-49.5, 49.5-54.5 etc. are the same.
The width of each of nine classes in a frequency distribution is 2.5 and the lower class boundary of the lowest class is 10.6. Which one of the following is the upper class boundary of the highest class?
35.6
33.1
30.6
28.1
Which of the following pairs is not correctly matched?
Circles-Two dimensional diagram
Multibars-One dimensional diagram.
Pictograms-Abstract representation of data
Ogive-Used to determine median
In a class of 100 students, the mean mark obtained in a certain subject is 30 and in another class of 50 students, the mean mark obtained in the same subject is 60. The mean marks obtained by thze students of two classes taken together is:
40
45
48
50
If X and Y are two sets, then X ( (X (Y)c equals.
X
Y
(
None of these
Description:

This test consist of 10 questions.Students should ideally take 10 minutes to complete the test. This test is useful for those students who are preparing for IIT JEE, AIEEE or any other engineering entrance test. This test cosist of questions from Statistics which, in general, is focused in AIEEE and IIT JEE. Last year 3 questions was asked from this chapter in AIEEE. In Statistics, deviations and variance are key topics and mostly application based questions are asked.

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