Why do you use a histogram?
Histogram is an illustrative way to represent a particular data. It is shown in vertical bar formation for a particular input and with respect to the number of continuous data given, which is said to be the frequency in each category.
A histogram is a single block graph of rectangles where the area of each rectangle will be proportional to the frequency.
Example 1: The points scored by John in his school test was marked in 10 for subjects Math, English, Science, French as 5, 6, 8, 7 respectively. Represent the above data in a histogram.
Example 2: The following histogram shows the number of singers who sang music albums in a year. Find the following:
- Highest number of songs sung in a year.
- Least number of songs sung.
- of songs 14 singers sang.
- How many singers sang 3-4 songs?
In such a pictorial representation it is easy to identify and find out, calculate a specific detail instead of analyzing the whole data.
- Grey colored bar on the graph states that 6 is the highest number of songs sung.
- Purple colored bar denotes 1 is least number of song sung.
- 5-6 songs were sung by 14 singers.
- 11 singers sang 3-4 songs.
Example 3: Following is the histogram view of a data showing the list of people who order home utilities online.
Basic items sold online are furniture, kitchen appliances, mobile phones and groceries.
- Find the product that is sold largely.
- How many people buy groceries online?
- The product which is sold largely is kitchen appliances.
- Between 0-200 people buy groceries online.
- Use the histogram to identify how long a student spends time on gadgets on school off days.
a.How many students spend only 5-10 hours?
b.How long does 4 students spend on gadgets?
c.Number of students spending maximum number of hours.
- Sheila collected the details of no. of novels sold in a book fair and made a histogram of the data which showed the no. of books sold between 20-200 dollars.
a) Draw a histogram if following is the data collected.
|No. of books (novels)||Amount (in Dollars)|
b) How many books were sold between $150 and $105?
- 3 students
- 10 – 15 hours
- 9 students
- Histogram made by Sheila will look like:
b.20 books were sold between $105 and $150.
Give Your Child The eTutorWorld Advantage
Research has proven that personal online tutoring not just cements school learning, it helps build student confidence. eTutorWorld provides the best K-12 Online Tutoring Services so you can learn from the comfort and safety of your home at an affordable cost.
Be it an exam, class test or a quiz, eTutorWorld’s Math, Science and English tutors are responsible for your academic progress. Meet your personal coach at your convenient day and time to get help for Grade 3-12 Math, Science and English subjects and AP, SAT, SSAT and SCAT Test Prep help and test practice. All our tutors are graduates and bring with them years of teaching experience to the tutoring lessons.
Our ‘Learning by Design’ methodology makes sure that each student is at the center of the teaching-learning process. All tutoring sessions start with a question to the student ‘What do you want to learn today?’ Hence, tutors diagnose your skills and recognize your requirements before the actual tutoring happens. Post every tutoring session, an individualized worksheet is emailed to the student to assimilate learned concepts. Regular formative assessments are used to evaluate a student’s understanding of the subject.
The state of the art technology used is stable, user friendly and safe. All you need is a computer or a tablet and an internet connection. The easy-to-use web conferencing software requires a one time download, using which the student can talk and chat to the tutor, annotate on an interactive shared whiteboard or even share documents, assignments or worksheets.
All tutoring sessions are recorded and made available for a month so you can review concepts taught.
Email or call our support team with any issues or questions – we are here for you 24X7.
Also, download free printable math and science worksheets in pdf format and solve SCAT and SSAT Practice Tests online. Sign up for a Free Trial Lesson Today!
Thousands have taken the eTutorWorld Advantage – what are you waiting for?
© 2020 eTutorWorld - Online Tutoring and Test Prep | All rights reserved