Advertisements
Advertisements
प्रश्न
Draw a histogram of the following data:
Class interval: | 10−15 | 15−20 | 20−25 | 25−30 | 30−35 | 34−40 |
Frequency: | 30 | 98 | 80 | 58 | 29 | 50 |
उत्तर
The class limits are represented along the x-axis and the frequencies are represented along the y-axis on a suitable scale. Taking class intervals as bases and the corresponding frequencies as heights, the rectangles can be drawn to obtain the histogram of the given frequency distribution. The histogram is shown below:
APPEARS IN
संबंधित प्रश्न
The number of hours for which students of a particular class watched television during holidays is shown through the given graph.
Answer the following
1) For how many hours did the maximum number of students watch TV?
2) How many students watched TV for less than 4 hours?
3) How many students spent more than 5 hours in watching TV?
A Mathematics aptitude test of 50 students was recorded as follows:
Marks | 50 - 60 | 60 - 70 | 70 - 80 | 80 - 90 | 90 – 100 |
No. of Students | 4 | 8 | 14 | 19 | 5 |
Draw a histogram from the above data using a graph paper and locate the mode.
The table below shows the yield of jowar per acre. Show the data by histogram.
Yield per acre (quintal) | 2 - 3 | 4 - 5 | 6 - 7 | 8 - 9 | 10 - 11 |
No. of farmers | 30 | 50 | 55 | 40 | 20 |
The age groups and the number of persons in the age groups, who donated blood in blood donation camp is given below. Find the measures of central angles to show the information by a pie diagram.
Age group (Years) | 20-25 | 25-30 | 30-35 | 35-40 |
No of persons | 80 | 60 | 35 | 25 |
The following table shows the investment made by some families. Show
the information by a histogran.
Investment (Thousand Rupees) |
10-15 | 15-20 | 20-25 | 25-30 | 30-35 |
No. of families | 30 | 50 | 60 | 55 | 15 |
The following table is based on the marks of the first term examination of 10th class students. Show the information by a histogram. Also, draw a frequency polygon with the help of the histogram.
Class-mark of marks | 325 | 375 | 425 | 475 | 525 | 575 |
No. of students | 25 | 35 | 45 | 40 | 32 | 20 |
Construct a histogram for the following data:
Monthly school fee (in Rs): | 30−60 | 60−90 | 90−120 | 120−150 | 150−180 | 180−210 | 210−240 |
Number of schools: | 5 | 12 | 14 | 18 | 10 | 9 | 4 |
The following histogram shows the monthly wages (in Rs) of workers in a factory:
(i) In which wage-group the largest number of workers are being kept? What is their number?
(ii) What wages are the least number of workers getting? What is the number of such workers?
(iii) What is the total number of workers?
(iv) What is the factory size?
Construct histograms for following frequency distribution:
Class Mark | 6 | 12 | 18 | 24 | 30 | 36 |
Frequency | 8 | 12 | 15 | 18 | 25 | 7 |
Draw histogram and hence the frequency polygon for the following frequency distribution:
Rainfall (in cm) | No. of years |
20-25 | 2 |
25-30 | 5 |
30-35 | 8 |
35-40 | 12 |
40-45 | 10 |
45-50 | 7 |
The marks scored by students in Mathematics in a certain examination are given below :
Marks Scored | Number of Students |
0 - 20 | 6 |
20 - 40 | 9 |
40 - 60 | 14 |
60 - 80 | 16 |
80 - 100 | 5 |
Draw histogram for the above data.
Distribution of height in cm of 100 people is given below:
Class interval (cm) | Frequency |
145 - 155 | 3 |
155 - 165 | 35 |
165 - 175 | 25 |
175 - 185 | 15 |
185 - 195 | 20 |
195 - 205 | 2 |
Draw a histogram to represent the above data.
Identify the following data can be represented in a histogram?
Production of cycles in different years
A graph that displays data that changes continuously over the periods of time is _________
In a village, there are 570 people who have cell phones. An NGO survey their cell phone usage. Based on this survey a histogram is drawn
Are people using cell phone for less than 1 hour?
The top speeds of thirty different land animals have been organised into a frequency table. Draw a histogram for the given data.
Maximum Speed (km/h) | Frequency |
10 – 20 | 5 |
20 – 30 | 5 |
30 – 40 | 10 |
40 – 50 | 8 |
50 – 60 | 0 |
60 – 70 | 2 |
Look at the histogram below and answer the questions that follow.
- How many students have height more than or equal to 135 cm but less than 150 cm?
- Which class interval has the least number of students?
- What is the class size?
- How many students have height less than 140 cm?
Draw a histogram to represent the frequency distribution in question 91.
Draw a histogram for the following data.
Class interval | 10 – 15 | 15 – 20 | 20 – 25 | 25 – 30 | 30 – 35 | 35 – 40 |
Frequency | 30 | 98 | 80 | 58 | 29 | 50 |
The following table shows the classification of percentage of marks of students and the number of students. Draw frequency polygon from the table without drawing histogram:
Result (Percentage) | Number of Students |
20 - 40 | 25 |
40 - 60 | 65 |
60 - 80 | 80 |
80 - 100 | 15 |