Reading Histogram

Q. The given histogram relates number of students to their hours of studying.


How many students spend less than $3$ hours in their studying?

1. $90$
2. $80$
3. $50$

Q. is the bar graph of a grouped frequency table.

1. Pie Chart
2. Histogram
3. Scattered Graph

Q. The data of number of persons visiting a shopping mall in different hours of a day is collected and plotted as shown.

The average number of persons per hour visiting the mall between 0700 to 0900 hours is .

Q. The following graph shows the number of boys of a class in different age groups:

Is it possible to find the total number of boys in the age group 0 - 10 years?Answer in Yes/No.

Q. Does a histogram give us precise data points? Answer in Yes/No.

Q. The given histogram shows the marks(given in range) obtained by the number of students.
How many students obtained marks as $50$?

1. $9$
2. $4$
3. Cannot be determined.

Q. The students of Grade 7 are categorized based on the marks obtained in Physics. The following histogram depicts the data:

How many number of students obtained exactly 40 marks?

1. 5
2. 20
3. Average of 5 and 20
4. Insufficient data.

Q. A histogram gives us precise data points as it is derived from a grouped frequency table.

1. True
2. False

Q. The figure given below represents a histogram.

1. False
2. True

Q. The students of Grade 7 are categorized based on the marks obtained in Physics. The following histogram depicts the data:

Which marks interval has the $2^{nd}$ highest number of students?

1. $0-40$ marks
2. $40-60$ marks
3. $60-80$ marks
4. $80-100$ marks