Illustration 10.21. The values of the arithmetic mean and thestandard deviation of the following frequency distribution of acontinuous variable derived from short-cut method are 135.3 lbs. and9.6 lb. respectively.-4-3 -2-112TotalFreq.58.18221380Determine the actual class interval.34

Answered: Image /qna-images/answer/a5405357-8caa-49e8-8dce-d5e9310d2f28.jpg

Answered: Illustration 10.21. The values of the…

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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Using standard deviation and its coefficient, state whether there is a greater variation in are requrřed to form a two-way frequency table with class interval 62" to 64", 64" to 66. and so on and 115 to 125 lbs. 125 to 135 lbs., etc. 1 7. The data given below relate to the height and weight of 20 persons. You blrow S.No. Weight Height S.No. Weight Height 1 170 70 11 163 70 135 65 12 139 67 3 136 65 13 122 63 4 137 64 14 134 68 148 69 15 140 67 6. 121 63 16 132 7 117 65 69 17 120 8. 128 70 18 65 148 9. 143 71 19 68 10 129 62 129 20 67 152 67 height or weight'.
Illustration 13.4. Compute a quantity Index for the following data, using weighted aggregate of quantities method. 1960 1970 Cоommodity Pr:ce Оuantity Quantity A 40 30 20 25 15 20 10 10 10 20 10 CS Scanned with CamScanner
Please show formulas used. Include all computations.
Given population parameters for two populations, population 1 has a mean of 500 and a standard deviation equal to 50. Population 2 has a mean of 21,000 and a standard deviation equal to 6,000. Complete parts a and b below. a) Compute the coefficient of variation for each population. %. (Round to one decimal place as needed.) The coefficient of variation of population 1 is The coefficient of variation of population 2 is %. (Round to one decimal place as needed.) b) Which population has data values that are more variable relative to the size of their population mean? O A. Both populations are equally variable relative to their population means. O B. Population 2 OC. Population 1
The estimated mean in Rand is: R45.750 The median in Rand is approximately: R45.714 The mode in Rand is R50.769 Calculate the 80th percentile in Rand?
Q.7
What is the population standard deviation using the following formula
Calculate the coefficient of variation between X and Y from the following data: 3 4. 6. Y 9. 10 12 11 13 14 16 重5
• Round your answers to 4 decimal places 1. Scores on an exam of 20 randomly selected students were measured to determine the class standing. The data are as follows: 75 77 90 97 Solve for the following: a. Mean b. Median c. Mode 86 95 95 88 90 96 88 66 d. Range e. Standard Deviation f. Standard Error of the Mean g. Coefficient of Variation h. Calculate the skewness and describe the shape of its distribution 86 76 83 65 69 78 70 89
lQ. 10. Find out mean deviation and its co-efficients. (a) Mean, and (b) median from the below given data of 10 students: Marks securred out of 100: 30, 40, 60, 50, 55, 45, 70, 65, 80, 85.
2. The table below shows the observations made on the colours of vehicles at a car p red blue white grey red red white yellow yellow pink black grey red black red grey white red blue red yellow white orange red a. What is the name of the most suitable average for this data? b. Determine the average for]this data. 3. Suppose you drive at 120 kilometres per hour for 150km, then at 105 kilometres per hour for 90km. Use the harmonic mean to find your average speed. 4. Calculate the geometric mean of 1.10, 1.12, 1.148, 1.038, and 1.16.
Refer to the accompanying data set and use the 30 screw lengths to construct a frequency distribution. Begin with a lower class limit of 3.470 in., and use a class width of 0.010 in. The screws were labeled as having a length of 3 1/2 in. A Click on icon to view the data. Complete the frequency distribution below. Length (in.) 3.470- Frequency (Type integers or decimals rounded to the nearest thousandth as needed.) lly a po m basic e electr evices b he first r ator com Data Table - X Screw Lengths (inches) 3.489 3.508 3.516 3.492 3.488 3.494 3.502 3.475 3.503 3.502 3.502 3.491 3.491 3.484 3.494 3.503 3.508 3.497 3.498 3.518 3.491 3.515 3.505 3.506 3.474 3.486 3.503 3.505 3.505 3.492 Print Done

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