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Find the mode of following frequency distribution :
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Modal class
Mode
Find the median of the following data :
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Median class
Median
Find mode of the given data :
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Modal class
Mode
The mean of the following frequency distribution is 57.6 and the sum of observations is 50. Find the missing frequencies \( f_1\) and \(f_2 \).
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….(1)
And
Solving both the equations
Find the mode from the following frequency distribution :
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Modal class
Mode
Find the modal marks from the following table :
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Modal marks as frequency is high on this class.
Find the mode from the following data :
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Modal class
Mode
Find the missing frequencies \(f_1 \) and \(f_2 \) in the following frequency distribution, if it is known that the mean of the distribution is 50 and the total frequency is 150.
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…(1)
….(2)
Solving both the eqn we get
A life insurance agent found the following data for distribution of ages of 100 policy holders. Calculate the median age, if policies are given only to persons having age 18 years onwards but less than 60 years.
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Median
Find the mean marks of the students from the following frequency distribution.
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Calculate the mode from the following data :
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Mode
Compute the median for the following data :
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Median
The median value for the following frequency distribution is 35 and the sum of all the frequencies is 170. Find the values of x and y.
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Median
Also
Find the mode of the marks obtained by 80 students in a class test in mathematics as given below :
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Modal class
Mode
The following table shows the ages of the patients admitted in a hospital during a year.
Find the mode and mean of the data given above. Compare and interpret the two measures of central tendency.
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Modal class
Mode
The mode of the following distribution is 65.625 hours. Find the value of p.
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Find the median for the following data :
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Median
A survey regarding the height (in cm) of 51 girls of class X of a school was conducted and the following data was obtained.
Find the median height.
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Median
The following table gives the distribution of the lifetime of neon lamps. Find the median lifetime of a lamp.
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Median
The annual profits earned by 30 shops in a market is represented in following table.
Draw both the ogives for the above data and hence obtain the median.
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Now, we mark on x-axis lower class limits, y-axis cumulative frequency
Thus, we plot the points (5,30),(10,28),(15,16),(20,14),(25,10),(30,7) and(35,3)
Now we mark the upper class limits along x-axis and cumulative frequency along y-axis.
Thus we plot the points (10,2),(15,14),(20,16),(25,20),(30,23),(35,27),(40,30)
We find that the two types of curves intersect of P from point L it is drawn on x-axis. The value of a profit corresponding to M is 17.5. Hence median is 17.5 lakh
From the following data, draw the two types of cumulative frequency curves and determine the median.
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Convert the following data to a less than type distribution and draw its ogive. Also find the median from the graph.
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Median (approx)
Change the given distribution to more than type distribution and draw its ogive.
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Draw more than ogive for the following distributions. Find the median from the curve.
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Median
Draw ‘less than’ ogive and ‘more than’ ogive for the following distribution and hence find its median.
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If the median of the following data is 525. Find the values of x and y if the sum of the frequencies is 100.
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Median
Calculate the mode of the following frequency distribution table.
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Mode
Find the median wage of a worker engaged at a construction site whose data are given below :
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Total number of workers = 100
Median wage
4100 is the median
Change the following data into less than type distribution and draw its ogive. Hence find the median of the data.
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Draw less than and more than ogive for the following distribution and hence find its median.
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The following distribution gives the annual profit earned by 30 shops of a shopping complex.
Change the above distribution to more than type distribution and draw its ogive.
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Now, we mark on x-axis lower class limits, y-axis cumulative frequency
Thus, we plot the points (5,30),(10,28),(15,16),(20,14),(25,10),(30,7) and(35,3)
Now we mark the upper class limits along x-axis and cumulative frequency along y-axis.
Thus we plot the points (10,2),(15,14),(20,16),(25,20),(30,23),(35,27),(40,30)
We find that the two types of curves intersect of P from point L it is drawn on x-axis. The value of a profit corresponding to M is 17.5. Hence median is 17.5 lakh
Following distribution shows the marks obtained by the class of 100 students. Draw less than ogive for the above data. Find median graphically and verify the result by actual method.
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From the graph median is 39 (approx)
Draw both types of cumulative frequency curve on the same graph paper and then determine the median.
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Median
If the median of the distribution given below is 28.5, find the values of x and y.
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Median
The mean of the following data is 50. Find the missing frequencies \(f_1 \) and \(f_2 \).
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A/Q
….(1)
Mean
….(2)
Solving two equation we get
The following table gives the distribution of expenditures of different families on education. Find the mean expenditure on Leducation of a family.
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Mean
100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in the English alphabet in the surnames was obtained as follows :
Determine the median number of letters in the surnames. Find the mean number of letters in the surnames. Also, find the modal size of the surnames.
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Median
Mean
Mode
Find the mean, mode and median of the following data :
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Mean
Median
Mode
The following table gives the daily income of 50 workers of a factory : Find the mean, median and mode of the above data.
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Mean
Median
Modal class
Mode
The median of the following data is 52.5. Find the values of x and y if the total frequency is 100.
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A/Q
….(1)
Median
Find the mode, median and mean for the following data :
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Mean
Modal class
Mode
3 Median = Mode + 2 Mean
Median