State whether the following statements are True or False and also give the reason in support of your answer.
a) Collection of rich persons in India forms a set.
b) Following rule is a function from A to B.
d) In exclusive method, upper limit of a class is included in the same class.
e) The order of the matrix
a) True
Reason: A set is a well-defined collection of distinct objects. The collection of rich persons in ______ ____ ___ ________ ______ _________ _____.
_______ ___ ____ ________ _______ _______ _______ ______ ____ ___ ______.
__________ ___ ___ ______ ____ ________ _____ ___ ____ _______.
_______ _________ ____ ______ ___ ___ _______.
___ _____ __________ _________ ____ ___ ________ ________ ______ _____ _____.
_________ _______ ___ ________ __________ ____ _______ ___.
_____ ________ _______ ____ ____.
______ ________ _____ ________ __________.
_____ ____ _____ ____ ______ ________ ____ _________ _________ _________ ___ ____.
_____ _______ _________ ________ ______.
_____ ____ ________ _________ __________ ___ _____ _____.
__________ ___ _______ ________ ____ ________ ______ _____ _____ ______.
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Express 700.1400.2100.2800.3500.42000 in terms of factorial.
State whether the following statements are True or False. Give reason in support of your answer.
(a) Between any two different rational numbers there is another rational number.
(b)
(c) 210 is 51st term of the sequence 10, 15, 20, 25, ...
(e) The range of the data shown in the following frequency distribution is 350.
| Classes | 200-250 | 250-300 | 300-350 | 350-400 | 400-450 | 450-500 | 500-550 |
| Frequencies | 0 | 7 | 3 | 8 | 4 | 0 | 0 |
A carpenter was hired to build 192 window frames. The first day he made five frames and each day thereafter he made two more frames than he made the day before. How many days he will take to finish his job?
If four cards are chosen from a pack of 52 playing cards then find the number of ways that all four cards are:
a) of same suit
b) red
c) face cards
d) king
e) of different suit
Write whether the following data are discrete or continuous. Give reason in support of your answer.
i) Number of children in a family in a colony of 100 families.
Number of pages in each of the 50 books having some mistake.
Height of students of IGNOU who enrolled in 2021.
iv) Waiting time of metro when a person reaches metro station.
v) Monthly income of the family.
What is the relation of unit on y-axis with unit on x-axis in histogram.
Draw a histogram for the following data:
| Wages | 40-49 | 50-69 | 70-99 | 100-109 | 110-119 |
| No of workers | 2 | 20 | 60 | 35 | 4 |