Give one example of a situation in which (i) the mean is an appropriate measure of central tendency


1

679

April 10, 2019

Find the mean salary of 60 workers of a factory from the following table


1

1558

April 10, 2019

Find the mode of 14, 25,14, 28,18,17,18,14, 23, 22,14 and 18


1

1330

April 10, 2019

The following observations have been arranged in ascending order


1

686

April 10, 2019

In a mathematics test given to 15 students, the following marks (out of 100) are recorded


1

1766

April 10, 2019

The following number of goals were scored by a team in a series of 10 matches


1

2299

April 10, 2019

100 surnames were randomly picked up from a local telephone directory and a frequency


1

1097

April 10, 2019

A random survey of the number of children of various age groups playing in a park


1

1323

April 10, 2019

The runs scored by two teams A and B on the first 60 balls in a cricket match


1

2351

April 10, 2019

The following table gives the distribution of students of two sections according to the marks


1

1542

April 10, 2019

The following table gives the lifetimes of 400 neon lamps


1

1150

April 10, 2019

The length of 40 leaves of a plant measured correct to one millimetre


1

657

April 10, 2019

Given below are the seats won by different political parties in the polling outcome of a state


1

1225

April 10, 2019

The following data on the number of girls (to the nearest ten) per thousand boys


1

1112

April 10, 2019

A survey conducted by an organisation for the cause of illness and death among the women


1

1186

April 10, 2019

A company manufactures car batteries of a particular type. The lives (in years) of 40


1

701

April 10, 2019

Thirty children were asked about the number of hours they watched TV programmes


1

821

April 10, 2019

Three coins were tossed 30 times simultaneously each time the number of heads occurring


1

680

April 10, 2019

A study was conducted to find out the concentration of sulphur dioxide in the air


1

831

April 10, 2019

The heights of 50 students, measured to the nearest centimeters have been found


1

1101

April 10, 2019

The relative humidity (in %) of a certain city for a month of 30 days was as follows


1

929

April 10, 2019

The blood groups of 30 students of class VIII are recorded as follows


1

566

April 10, 2019

Classify the data in Q.1 above as primary or secondary data


1

741

April 10, 2019

Give five examples of data that you collect from your daytoday life


1

1559

April 10, 2019

The following table gives production yield per hectare of wheat of 100 farms of a village


1

3554

April 1, 2019

During the medical checkup of 35 students of a class, their weights were recorded as follows:


1

2265

April 1, 2019

The following distribution gives the daily income of 50 workers of a factory


1

1444

April 1, 2019

The distribution below gives the weight of 30 students in a class


1

2474

April 1, 2019

100 surnames were randomly picked up from a local telephone directory


1

2460

April 1, 2019

The following table gives the distribution of the lifetime of 400 neon lamps:


1

2971

April 1, 2019
