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


2

282

April 10, 2019

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


2

380

April 10, 2019

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


2

327

April 10, 2019

The following observations have been arranged in ascending order


2

263

April 10, 2019

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


2

350

April 10, 2019

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


2

436

April 10, 2019

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


2

288

April 10, 2019

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


2

325

April 10, 2019

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


2

758

April 10, 2019

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


2

540

April 10, 2019

The following table gives the lifetimes of 400 neon lamps


2

247

April 10, 2019

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


2

142

April 10, 2019

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


2

247

April 10, 2019

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


2

247

April 10, 2019

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


2

411

April 10, 2019

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


2

121

April 10, 2019

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


2

178

April 10, 2019

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


2

189

April 10, 2019

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


2

179

April 10, 2019

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


2

178

April 10, 2019

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


2

138

April 10, 2019

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


2

141

April 10, 2019

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


2

223

April 10, 2019

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


2

530

April 10, 2019

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


2

1072

April 1, 2019

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


2

869

April 1, 2019

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


2

334

April 1, 2019

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


2

230

April 1, 2019

100 surnames were randomly picked up from a local telephone directory


2

298

April 1, 2019

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


2

757

April 1, 2019
