Introduction to Data Handling

Which of these would be a good question to ask to find about people's eating habits?

Julian runs a bookshop. The table shows the number of books purchased by each of his last $25$ customers. 

Calculate the median number of books purchased by these customers. 

Twenty-Five cards were picked up from a pack of cards one by one. The cards picked up are as follows:
Spade, Club, Spade, Club, Spade, Spade, Club, Diamond, Heart, Club, Diamond, Club, Diamond, Club, Diamond, Spade, Diamond, Club, Spade, Diamond, Heart, Diamond, Heart, Club, Heart
What is the frequency of diamond?

Number of people in various age groups in a town is given in the following table:

How many senior citizens are there in the town?

Number of people in various age groups in a town is given in the following table:

How many age groups have the same population?

The number of story books read by $4$ friends in a year is as follows. Show the tally marks for the number of books read, for each friend.

Manish: $16$  Alka: $22$  Ayesha: $14$  Harjit: $18$

The final marks obtained in Mathematics by $40$ students are as follows:

$\begin{array}{l}60\\ 100\\ 68\\ 60\\ 61\\ 62\\ 39\end{array}$   $\begin{array}{l}56\\ 48\\ 58\\ 37\\ 88\\ 75\\ 68\end{array}$   $\begin{array}{l}90\\ 39\\ 59\\ 64\\ 58\\ 82\\ 50\end{array}$   $\begin{array}{l}50\\ 70\\ 98\\ 52\\ 44\\ 61\\ 52\end{array}$   $\begin{array}{l}62\\ 60\\ 84\\ 77\\ 75\\ 19\\ \end{array}$   $\begin{array}{l}67\\ 55\\ 78\\ 48\\ 53\\ 49\\ \end{array}$

What is the range?

Kate made a tally table of the ice-cream cones sold to Kate’s Ice-Cream Parlour during a weekend in May. Use the given data to draw a pictograph.

(scale:  = 5)

Ms Jennifer collected data from the students of class V on their favourite animals. She presented the same using tally marks.

Tanvishi is one of the best students. Her predicted marks in class $\mathrm{VIII}$ and her actual marks are shown in the graph.
The dotted line represents the predicted marks and the solid line represents the actual marks. In _____ she got more marks than the predicted marks.

The graph given below shows the maximum temperature during the last week of April. The maximum temperature $35°\mathrm{C}$ was on

Match List-I with List-II.

Monthly savings (in rupees) of $14$ students of class $\mathrm{VIII}$ are as follows: $53, 80, 43, 90, 64, 20, 24, 30, 53, 56, 60, 64, 53, 40.$

The frequency of the observation $53$ is

Given class intervals $0-8, 8-16, 16-24, 24-32.....,$ then $24$ is considered in the class

The number of times a particular observation occurs is called its

Find the odd word from the given options: