Math Chapter Wise question with answer

Q01 The algebraic sum of deviations of 25 observations from 18 is 75, then mean of observations is: English · KVS PGT 2023 Q02 If the algebraic Sum of the deviations of 10 observations measured from 15 is 7, then mean is English · UP TGT-2016 (08-03-2019) Q03 The mean of 100 observations is 50 and their standard deviation is 5. The sum of squares of all observations is– English · KVS TGT 2017 Q04 Two integers are selected at random from the set {1, 2, 3, 4,..., 11}. Given that the sum of selected numbers is ev... English · EMRS PGT-2023 Q05 In the following frequency distribution Height (in cm): 140 - 145 - 150 - 155 - 160 - 165 - 170 Number of students:... English · EMRS TGT-2023 Q06 In a simultaneous throw of two dice, the probability of getting a total sum of 8 is English · DSE TGT 2022