Math Chapter Wise question with answer

Q01 The mean of the probability distribution of the number obtained on throwing a die having written 1 on three faces,... English · EMRS TGT-2023 Q02 The median and mode of a frequency distribution are 26 and 29 respectively. Then the mean is: English · EMRS TGT-2023 Q03 The mean of 5 observations is 4 and their variance is 5.2. If three of those observations are 1, 2 and 6 the other... English · KVS PGT 2023 Q04 The mean of first 3 observations is 23, next 2 observations is 18 and the last 3 observations is 21. The mean of al... English · NVS PGT 2022 Q05 Given that ∑ ∑ ∑fi = 80, ∑ ∑ ∑fi xi = 4000 and ∑ ∑ ∑fi |xi − x | =1280 for a set of observations. Mean deviation ab... English · KVS PGT 2022 Q06 Marks of a chemistry test follow a normal distribution with a mean of 65 and a standard deviation of 12. Approximat... English · DSSSB PGT 2021