Data Handling

Calculate the median of the numbers $7, 11,$ and $13$.

How is the number $4$ represented using standard tally marks?

Find the mode of the data: $9, 9, 8, 8, 9, 7$.

If the sum of three numbers is $21$, what is their arithmetic mean?

In a tally chart, the frequency of $9$ is represented as:

What is the mean of the numbers $11, 12, 13, 14,$ and $15$?

Find the range of the heights of five students: $140$ cm, $152$ cm, $138$ cm, $160$ cm, and $145$ cm.

Find the range of the following set of fractions: $1/2, 1/4, 1/8, 1/16, 1/32$.

The sum of $20$ observations is $400$. If one observation $39$ is deleted from the set, what is the new mean of the remaining $19$ observations?

What is the difference between the mean of the first $5$ even natural numbers and the mean of the first $5$ odd natural numbers?

Find the median of the following data: $1, 1, 1, 2, 2$.

The mean of the numbers $6, 12, 18$ is:

Calculate the range of the values $7, 14, 21, 28$.

Find the mode of the data: $88, 89, 88, 90, 88$.

What is the range of the constant data set: $15, 15, 15, 15$?

If the mean of $5$ numbers is $10$, and each number is multiplied by $3$, what is the new mean?

Find the median of the sequence: $11, 12, 13, 14, 15, 16, 17, 18$.

The mean age of $3$ friends is $23$. If their ages are in the ratio $4:5:6$, find the age of the youngest friend.

If the mean of $5$ observations $x, x+2, x+4, x+6, x+8$ is $13$, find the value of the last observation.

Find the mean of the first $5$ odd natural numbers.

What is the total number of students in the class according to the graph? (Scale: $1$ unit $= 5$ students)

In the graph, if the bar for 'Blue' is $4$ units high and 'Red' is $7$ units high, how many more students like Red than Blue? (Scale: $1$ unit $= 2$ students)

Which of the following is represented by the vertical axis in the provided bar graph for 'Temperature of Cities'?

If the length of a bar representing 'Rice' is $6$ cm and the scale is $1$ cm $= 10$ kg, what is the quantity of Rice?

Identify the scale used on the y-axis from the given graph.

What is the median value represented in this bar graph with 5 bars? (Values: $10, 20, 30, 40, 50$)

In a bar graph, if $1$ unit represents $100$ units and a bar height is $4.5$ units, and another bar height is $2.5$ units, what is the total of both?

A shopkeeper sells different fruits. The bar graph has a scale of 1 unit = 12 kg. If the bars for Apple, Mango, and Grapes have heights of $6.5$, $8.25$, and $4.25$ units respectively, calculate the total weight of fruits sold.

A forest department recorded tree growth. A bar graph with scale 1 unit = $0.5$ meters shows a Teak tree bar at 14 units and a Neem tree bar at 11 units. If the department wants to change the scale to 1 unit = $0.25$ meters, what will be the new height of the Teak tree bar in units?

The double bar graph shows marks of a student in Term 1 and Term 2. Scale: 1 unit = 10 marks. In Term 1, Maths = 8 units, Science = $7.5$ units. In Term 2, Maths = 9 units, Science = 8 units. What is the difference between the total marks of Term 1 and Term 2 in these two subjects?

Picking a composite number from a die (numbers $4$ and $6$). What is the probability?

If a bag has $10$ identical white balls, what is the probability of drawing a white ball?

Which word describes an event with a probability of $1$?

A spinner has $4$ sections: Red, Blue, Green, Yellow. What is the probability of landing on Red?

A bag contains $3$ red, $5$ yellow, and $2$ blue balls. What is the probability of drawing a ball that is NOT blue?

A letter is chosen from the word $EXAMINATION$. What is the probability that the letter is '$I$'?

When a die is thrown, what is the probability of getting a number between $1$ and $6$ (excluding both $1$ and $6$)?

A die is thrown once. What is the probability of getting a number that is a factor of $6$ but greater than $2$?

A letter is chosen from 'STATISTICS'. What is the probability that it is 'S' or 'T'?

A bag has $2$ blue, $3$ red, and $x$ green balls. If the probability of blue is $\frac{1}{5}$, find $x$.