Download presentation

Presentation is loading. Please wait.

Published byJose Reid Modified over 3 years ago

1
Histogram Edexcel S1 Mathematics 2003

2
Histogram Used to represent continuous grouped data Does not have any gaps between bars Areas represent frequency.

3
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. (b) Estimate the number of students under 158 cm in height Answer (a): find class boundaries label horizontal axis using continuous scale find class widths find class frequency densities label vertical axis for frequency densities draw bars using class boundaries and frequency densities

4
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class boundaries

5
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class boundaries Eg boundary between 154 and 155 is 154.5

6
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class boundaries Eg boundary between 154 and 155 is 154.5

7
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class boundaries Height cm heights of 325 students

8
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): label horizontal axis using continuous scale heights of 325 students Height cm

9
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): label horizontal axis using continuous scale 120130140150160170180190200 Height cm heights of 325 students

10
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. 120130140150160170180190200 Height cm heights of 325 students Answer (a): find class widths

11
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. 120130140150160170180190200 Height cm heights of 325 students Answer (a): find class widths Eg 164.5 – 154.5 = 10

12
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class widths 120130140150160170180190200 Height cm heights of 325 students Eg 164.5 – 154.5 = 10

13
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class widths 120130140150160170180190200 Height cm heights of 325 students

14
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. 120130140150160170180190200 Height cm heights of 325 students Answer (a): find class frequency densities Frequency density =

15
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. 120130140150160170180190200 Height cm heights of 325 students Answer (a): find class frequency densities Frequency density = Eg=

16
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class frequency densities 0 Frequency density (No of students per cm) 120130140150160170180190200 Height cm heights of 325 students Frequency density = Eg= 5

17
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): find class frequency densities 0 Frequency density (No of students per cm) 120130140150160170180190200 Height cm heights of 325 students

18
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): label vertical axis for frequency densities 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

19
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): draw bars using class boundaries and frequency densities 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

20
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): draw bars using class boundaries and frequency densities 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

21
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): draw bars using class boundaries and frequency densities 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

22
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): draw bars using class boundaries and frequency densities 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

23
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. Answer (a): draw bars using class boundaries and frequency densities 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

24
Histogram - example Question: The heights of 325 students were measured to the nearest cm (a)Draw a histogram to illustrate the above data. 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 Answer (a): draw bars using class boundaries and frequency densities heights of 325 students

25
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): find class containing 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 heights of 325 students

26
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 5055 50 55 heights of 325 students

27
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 5055 heights of 325 students

28
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 55 158 heights of 325 students 158 – 154.5 = 3.5 3.5 50

29
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 55 158 heights of 325 students 158 – 154.5 = 3.5 50. 10 3.5 50

30
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 55 158 heights of 325 students 17.532.5 158 – 154.5 = 3.5 50.= 17.5 10 3.5

31
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 55 158 heights of 325 students 17.532.5 158 – 154.5 = 3.5 50.= 17.5 55 + 17.5 = 72.5

32
Histogram - example Question: The heights of 325 students were measured to the nearest cm (b) Estimate the number of students under 158 cm in height Answer (b): use interpolation to estimate number under 158 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 154.5164.5 55 158 heights of 325 students 158 – 154.5 = 3.5 50.= 12.5 55 + 17.5 = 72.573 students 72.5 Approx 73 students under 158 cm 158 17.532.5

33
Histogram - example Question: The heights of 325 students were measured to the nearest cm Answer: 2 4 0 6 8 10 Frequency density (No of students per cm) 120130140150160170180190200 Height cm 12 158 heights of 325 students (a)Draw a histogram to illustrate the above data. (b) Estimate the number of students under 158 cm in height Approx 73 students under 158 cm 72.5

Similar presentations

OK

Histograms. Grouped frequency distribution Shows how many values of each variable lie in a class. Some information is lost. When presenting this information.

Histograms. Grouped frequency distribution Shows how many values of each variable lie in a class. Some information is lost. When presenting this information.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on product management Ppt on multipurpose river valley projects Ppt on nuclear energy in india Ppt on high level languages examples Ppt on any famous personality Ppt on carbon and its compounds Ppt on conservation of angular momentum Ppt on natural numbers math Download ppt on indus valley civilization location Ppt on two point perspective drawings