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Statistics
Q1.
Marks in statistics of 12 students are x, 28, 35, 56, 78, 63, 65, 81, 79, 83, 80, y, where x and y are the lowest and highest marks, respectively. If the range and average of the marks are 70 and 64, respectively, then the ordered pair (x, y) is:
Q2.
If the mode of the following data is 140, then what is the value of x?Class125-130130-135135-140140-145145-150Frequency303033x31