13 15 16 6.1. Construct a Grouped Frequency Distribution Table[by determining the [Hint: Follow these steps: a) determine Number of class [Hint use: Number of class = 1+ 3.3 log n| Range b) determine Class width [Hint use: Class width = No of Class c) determine Class-Limit and Frequency of each class, d) Class-Boundary, [Hint use: Class Boundary = Class - limit t 0.51. lower Class-limit+uper class-limit %3D e) Class-Mark, [Hint use: lass Mark = or Class Mark = lower Class-boundary+uper-boundary 2. e) calculate Less than Cumulative Frequency 6.2. Use the above Information's and Construct a Histogram 6.3. Measure of Central Tendency: Calculate the Mean, a) b) Determine the Median Class and calculate Median c) Determine the Modal Class and calculate Mode

13 15 16 6.1. Construct a Grouped Frequency Distribution Table[by determining the [Hint: Follow these steps: a) determine Number of class [Hint use: Number of class = 1+ 3.3 log n| Range b) determine Class width [Hint use: Class width = No of Class c) determine Class-Limit and Frequency of each class, d) Class-Boundary, [Hint use: Class Boundary = Class - limit t 0.51. lower Class-limit+uper class-limit %3D e) Class-Mark, [Hint use: lass Mark = or Class Mark = lower Class-boundary+uper-boundary 2. e) calculate Less than Cumulative Frequency 6.2. Use the above Information's and Construct a Histogram 6.3. Measure of Central Tendency: Calculate the Mean, a) b) Determine the Median Class and calculate Median c) Determine the Modal Class and calculate Mode

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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15. OLD FAITHFUL Listed below are sorted duration times (seconds) of eruptions of the Old Faithful geyser in Yellowstone National Park. Use these times to construct a frequency distribution. Use a class width of 25 seconds and begin with a lower class limit of 125 seconds. 125 203 205 221 225 229 233 233 235 236 236 237 238 238 239 240 240 240 240 241 241 242 242 242 243 243 244 245 245 245 245 246 246 248 248 248 249 249 250 251 252 253 253 255 255 256 257 258 262 264
Here is a data set: Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. Your classes should be labeled using interval notation. Each class should contain its lower class limit and each sequential lower class limit should increase by increments of the class width. In that the data appears to be discrete, use a closed-interval to label each class. Data range [4540,4789] [4790,5039] [5040,5289] [5290,5539] [5540,5789] [5790,6039] [6040,6289] [6290,6539] [6540,6789] [6790,7039] X X 6300 5980 5360 5950 5860 6230 4940 5510 5180 5090 5140 5750 6010 6440 5590 5970 6540 6190 5720 6090 4540 5760 6960 5300 6960 5490 5170 6020 Frequency X 1 2 X X 6 X4 X 2 X 4 X X 6 X 2 X X 2 X 2 X X 1 X 3 O 6 ४ 2
Consider the following frequency table representing the distribution of hours students spend on the internet in a week. Hours Students Spend on the Internet in a Week Class Frequency 3–9 6 10–16 13 17–23 11 24–30 8 31–37 7 Determine the lower class boundary for the second class.
5. 200 180 160 140 120 Cumulative frequency 100 (sh) 80 60 A 40 20 0 0 10 20 ii) the upper quartile 40 30 50 Number of hours worked (h) iii) the inter-quartile range 60 70 200 people record the number of hours they work in a week. The cumulative frequency graph shows this information. a) Use the graph to find: i) the median 80 iv) the number of people who work more than 60 hours in a week