Page 1 :
2022.03.19 12:44, TUTO RIAL, MATHEMATICS, TIME: 1.00 Hours, complete maths, M.M. :, Q1 Find the mean salary of 60 workers of a factoru from the following table:, Class 9th, Salary in R, Number of workers, 91, 8., 9., 0000, 4., 3., Total, 09, Q2. The following observations have been arranged in ascending order. If the median of the data is 63, find the, value of x. 29, 32, 48, 50, x, X+2, 72, 78, 84, 95, Q3. In a mathematics test given to 15 students, the following marks (out of 100) are recorded:, 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60, Find the mean, median and mode of this, data., Q4. The following number of goals were scored by a team in a series of 10 matches:, 2, 3, 4, 5, 0, 1, 3, 3, 4, 3, Find the mean, median and mode of these scores., Q5 To construct an equilateral triangle and also write the step of construction, Q6 To construct of an angle of 75°, solution, 1. The following number of goals were scored by a team in a, Here,, series of 10 matches:, Number of observations (n) = 10, %3D, 2, 3, 4, 5, 0, 1, 3, 3, 4, 3, Since the number of observations are even, the median can be, calculated as:, Find the mean, median and mode of these scores., Mode,, Solution:, To find the mode, we first arrange the data in ascending order., Mean = Average = Sum of all the obsenvations/Total number of, observations, 0, 1, 2, 3, 3, 3, 3, 4, 4, 5., Here,, 3(2+3+4+5+0+1+3+3+4+3)/10, %3D, We find that 3 occurs most frequently (4 times), . Mode = 3, 3 2.8, 2. In a mathematics test given to 15 students, the following, Median,, marks (out of 100) are recorded:, To find the median, we first arrange the data in ascending, 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60, O order., Find the mean, median and mode of this data., 0, 1, 2, 3, 3, 3, 3, 4, 4, 5