The heights of 10 girls were measured in cm and the results are as follows:
135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
What is the range of the data?

The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141. What is the mean height of the girls?

The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141. What is the height of the tallest girl?

The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141. What is the height of the shortest girl?

The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141. How many girls have heights more than the mean height.

The heights (in cm) of 9 students of a class are as follows: 155 160 145 149 150 147 152 144 148 Find the median of this data.

Observe the histogram (fig.) and answer the question given below: (i) What information is being given by the histogram? (ii) Which group contains maximum girls. (iii) How many girls have height 145 cms. and more? (iv) If we divide the girls into the following three categories, how many would there be in each? 150 cm and more - Group A 140 cm to less than 150 cm - Group B Less than 140 cm - Group C

Observe the following facts : (1) The distance from the Earth to the Sun is 149,600,000,000m (2)The speed of light is 300,000,000 m/sec. (3) Thickness of class VII Mathematics book is 20mm (4) The average diameter of a Red Blood cell is 0.00007mm. (5) The thickness of human hair is in the range of 0.005 cm to 0.01 cm. (6) The distance of moon from the Earth is 384,467,000 m. (approx.) (7) The size of a plant cell is 0.00001275m. (8) Average radius of the Sun is 695000km. (9) Mass of propellant in a space shuttle solid rocket booster is 503600kg (10) Thickness of a piece or paper is 0.0016cm. (11) Diameter of a wire on a computer chip is 0.000003m. (12) The height of Mount Everest is 8848m. There some large number like 150,000,000,000m and some every small numbers like 0.000007m. Identify very large and very small numbers from the above facts and write them in the adjacent table.

Construct a frequency distribution table with class size 10 of the following data 184,144,195,130,134,132,114,196,174,212,210,188,202,145,154,175,178,146,166, 115,135,114, 126,188,140, 166,176,208,210