|
Give one example of a situation in which (i) the mean is an appropriate measure of central tendency
|
|
1
|
767
|
April 10, 2019
|
|
Find the mean salary of 60 workers of a factory from the following table
|
|
1
|
1714
|
April 10, 2019
|
|
Find the mode of 14, 25,14, 28,18,17,18,14, 23, 22,14 and 18
|
|
1
|
1480
|
April 10, 2019
|
|
The following observations have been arranged in ascending order
|
|
1
|
782
|
April 10, 2019
|
|
In a mathematics test given to 15 students, the following marks (out of 100) are recorded
|
|
1
|
1986
|
April 10, 2019
|
|
The following number of goals were scored by a team in a series of 10 matches
|
|
1
|
2447
|
April 10, 2019
|
|
100 surnames were randomly picked up from a local telephone directory and a frequency
|
|
1
|
1258
|
April 10, 2019
|
|
A random survey of the number of children of various age groups playing in a park
|
|
1
|
1525
|
April 10, 2019
|
|
The runs scored by two teams A and B on the first 60 balls in a cricket match
|
|
1
|
2706
|
April 10, 2019
|
|
The following table gives the distribution of students of two sections according to the marks
|
|
1
|
1741
|
April 10, 2019
|
|
The following table gives the lifetimes of 400 neon lamps
|
|
1
|
1354
|
April 10, 2019
|
|
The length of 40 leaves of a plant measured correct to one millimetre
|
|
1
|
809
|
April 10, 2019
|
|
Given below are the seats won by different political parties in the polling outcome of a state
|
|
1
|
1419
|
April 10, 2019
|
|
The following data on the number of girls (to the nearest ten) per thousand boys
|
|
1
|
1240
|
April 10, 2019
|
|
A survey conducted by an organisation for the cause of illness and death among the women
|
|
1
|
1340
|
April 10, 2019
|
|
A company manufactures car batteries of a particular type. The lives (in years) of 40
|
|
1
|
791
|
April 10, 2019
|
|
Thirty children were asked about the number of hours they watched TV programmes
|
|
1
|
934
|
April 10, 2019
|
|
Three coins were tossed 30 times simultaneously each time the number of heads occurring
|
|
1
|
770
|
April 10, 2019
|
|
A study was conducted to find out the concentration of sulphur dioxide in the air
|
|
1
|
932
|
April 10, 2019
|
|
The heights of 50 students, measured to the nearest centimeters have been found
|
|
1
|
1246
|
April 10, 2019
|
|
The relative humidity (in %) of a certain city for a month of 30 days was as follows
|
|
1
|
1029
|
April 10, 2019
|
|
The blood groups of 30 students of class VIII are recorded as follows
|
|
1
|
647
|
April 10, 2019
|
|
Classify the data in Q.1 above as primary or secondary data
|
|
1
|
833
|
April 10, 2019
|
|
Give five examples of data that you collect from your day-to-day life
|
|
1
|
1642
|
April 10, 2019
|
|
The following table gives production yield per hectare of wheat of 100 farms of a village
|
|
1
|
3904
|
April 1, 2019
|
|
During the medical check-up of 35 students of a class, their weights were recorded as follows:
|
|
1
|
2468
|
April 1, 2019
|
|
The following distribution gives the daily income of 50 workers of a factory
|
|
1
|
1682
|
April 1, 2019
|
|
The distribution below gives the weight of 30 students in a class
|
|
1
|
3001
|
April 1, 2019
|
|
100 surnames were randomly picked up from a local telephone directory
|
|
1
|
2958
|
April 1, 2019
|
|
The following table gives the distribution of the lifetime of 400 neon lamps:
|
|
1
|
3355
|
April 1, 2019
|