Negation of ''Monu is in class X or Anu is in class XII'' is
Write the negation of each of the disjunction: Ram is in class X or Rina is in Class IX.
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The class size of a distribution is 25 and the first class-interval is 200-224. There are seven class-intervals. Write the class-intervals. Write the class-marks of each interval.
Class-one lever and class-three lever
First class lever and Second class lever
In Class XI of a certain school, there are 30 students in a Mathematics class and 20 students in Biolog class. Find the number of students which are in Mathematics class or in Biology class in the following cases: (i) Two classes are conducted at the same time. (ii) Two classes are condcuted at different time and 5 students study both the subject
From the following frequency table. Find : (a) The frequency of fifth class interval (b) The upper class limit of third class interval. (c) The lower class limit of second class interval. (d) The class mark of sixth class interval.
While calculating mode the following observation are found. Lower limit of modal class =40, frequency of modal class =20, frequency of previous class =12 , frequency of preceding class =11 and width of the class =10, find mode .
In a class , 45 % of students are girls, If there are 22 boys in the class, then the total number of students in the class is
