Data Handling

In a frequency distribution table, the sum of all the frequencies is equal to the:

The tally mark for the number $9$ is represented by:

What is the range of $10, 20, 30, 40, 50$?

The upper limit of the class interval $12 - 18$ is:

Calculate the class mark of the class $7.5 - 12.5$.

If the range of a data set is $0$, it means:

Which of the following is the mid-value of the class $x-5$ to $x+5$?

Given the data $7, 9, 12, 15, 7, 12, 15, 18, 7, 12$. If this data is organized into a frequency table, which value has the highest frequency?

The mid-value of a class is $k$. If the class width is $w$, the upper limit is:

In a dataset with $50$ observations, the class $20-30$ has a frequency of $12$. The percentage frequency of this class is:

If a pie chart is divided into 8 equal sectors, what is the central angle of each sector?

In a pie chart, if the total value is $1200$, a sector with a central angle of $30^\circ$ represents a value of:

If the central angle of a sector is $45^\circ$, what percentage of the total does it represent?

In a pie chart, a sector representing $10\%$ of the data has a central angle of $36^\circ$. What would be the central angle for $30\%$ of the data?

The following pie chart shows the distribution of time spent by a student in different activities during a day ($24$ hours). Based on the information provided, calculate the time spent (in hours) on 'School' and 'Homework' combined.

The total of all items in a survey is $720$. A specific item has a value of $80$. What is its central angle in a pie chart?

In a pie chart, the sector representing 'Electricity' has a central angle of $40^\circ$. What percentage of the total budget is spent on electricity?

The pie chart shows the modes of transport used by $1800$ students. The angle for Bus is $140^{\circ}$ and Cycle is $80^{\circ}$. If the number of students walking is half the number of students using a Car, find the number of students who walk to school.

In a collection of $1200$ stamps, the central angle for Indian stamps is $150^{\circ}$ and for UK stamps it is $90^{\circ}$. The remaining stamps are from the USA and France in the ratio $2:1$. Find the number of stamps from the USA.

A pie chart shows the time spent by a student in a day. Sleeping: $8$ hours, School: $6$ hours, Homework: $4$ hours, Play: $x$ hours, Others: $2$ hours. Find the central angle for Play.

In a histogram, the class intervals are taken along the:

The range of the data $2, 2, 2, 2, 2$ is:

To find the number of observations in a certain range from a histogram, we look at the:

The class mark of the interval $1000 - 2000$ is:

While drawing a histogram, if the scale on the x-axis is $1$ unit = $10$ units of the variable and we need to plot class $50-60$, the width of the rectangle on the graph will be:

If the difference between two consecutive class marks is $10$, then the class size is:

The upper limit of the class $0 - 5$ in a continuous distribution is:

If we want to compare two histograms of different sample sizes, what should be plotted on the y-axis instead of absolute frequency?

In a histogram, if the x-axis scale is $1$ cm $= 10$ units and the y-axis scale is $1$ cm $= 5$ units, what is the frequency represented by a bar of $4$ cm height and $1.5$ cm width?

What is the sum of the heights of all rectangles in a histogram where the width of each class is $1$ unit and the total number of observations is $N$?

If an event $E$ has a probability $P(E) = 0.7$, what is the probability of 'not $E$'?

A card is drawn from a pack of $10$ cards numbered $11$ to $20$. What is the probability of drawing an even number?

What is the probability of getting a number between $1$ and $6$ (excluding $1$ and $6$) when rolling a die?

In a bag of $15$ chocolates, $5$ are dark and $10$ are milk chocolates. What is the probability of picking a milk chocolate?

A spinner is numbered $1$ to $6$. What is the probability that it lands on a number less than $7$?

In the word 'STATISTICS', what is the probability of selecting the letter 'T'?

From a deck of $52$ cards, what is the probability of drawing either a club or a spade?

A card is drawn at random from a pack of $52$ cards. What is the probability that it is the Queen of diamonds or the King of hearts?

Two dice are thrown simultaneously. What is the probability that the product of the numbers is a prime number?

A number is chosen at random from $1$ to $50$. What is the probability that it is a prime number whose units digit is $3$?