Mathematics
The ages of 8 students are: 11, 13, 12, 14, 11, 15, 12, 13.
(a) Find the mean and median of the data
(b) Which value (mean or median) do you think best represents the central tendency of this data? Explain why.
Related Questions
Ravi wants to fence his rectangular vegetable garden and also plant grass in it. The garden is 12 m long and 8 m wide.
(a) What is the length of fencing required?
(b) If the cost of fencing is ₹ 75 per metre, what will be the total fencing cost?
(c) What is the area of the garden?
(d) If grass costs ₹ 40 per square metre, how much will it cost to plant grass in the entire garden?
Test whether 4,56,832 is divisible by 6 and 9. Show your working using divisibility rules.
Subtract 62.75 from the sum of 48.92 and 76.58. Also round off the answer to the nearest tenth.
Amit is designing a logo using geometric shapes. He draws:
(a) A closed curve with 4 straight sides
(b) A straight line that extends infinitely in both directions
(c) A shape that has a centre and all points on the boundary are at the same distance from it.
Answer the following questions:
(a) What is the name of the closed curve with 4 sides?
(b) What is the name of the second shape Amit drew?
(c) What is the third shape? What is the name of the line segment joining the centre to any point on the boundary?