а)Frequency (f)fxfxX?cfi15901350225201122044004001725174251062562534302472021600900 583514490171501225 72408320128001600 80Totaln=80Σέ-2265Efx²-67925Find the values of:į, Meanii. Medianiii. Modeiv. Variance;v. Standard deviation6,

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Answered: a) Frequency (f) fx X? efi 15 6 90 1350…

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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• B. Develop the frequency histogram and the frequency distribution of the data and determine:Use Intervals: 19 - <22; 22 - <25; 25 - <28; 28 - <31; 31 - <34; 34 - <37; 37 - 40 23 33 40 38 25 35 35 21 38 25 30 35 37 30 36 37 34 30 33 38 33 21 28 30 39 28 23 35 35 28 36 23 35 24 34 24 40 31 33 27 33 24 31 20 35 20 36 20 36 21 35 30 36 28 33 32 40 35 39 33 1. The arithmetic mean speed 2. The standard deviation 3. The median speed 4. The pace 5. The mode or modal speed 6. The 85th-percentile speed 7. The 15th-Percentile speed
Find the mean of the grouped frequency distribution. Interval Frequency 0-9 4 10-19 20-29 30-39 40-49 50-59 5 10 9 3 1 ESS D What is the mean of the grouped data? (Round to the nearest hundredth as needed.)
Data set: 139 173 198 214 175 193 166 220 122 177 119 203 175 147 250 205 216 214 260 216 256 208 185 150 204 216 261 320 236 229 138 177 132 191 356 236 316 246 212 305 289 144 396 296 171 230 324 232 46 188 164 204 109 87 218 89 199 143 265 237 Find frequency and relative frequency draw relative frequency Use the empirical rule to estimate the percentages of observations that lie within one, two, and three standard deviations to either side of the Use the data to obtain the exact percentages of observations that lie within one, two, and three standard deviations to either side of the Compare your answers in parts (b) and (c)
Q1 (Answer only two questions) (a) Find the mean, median, mode, range and coefficient of variation for the following data (standard deviation 152.971). 420 360 180 240 300 180 60 540 QI-b) Draw the histogram and frequency polygon for the frequency distribution table below. Classes 99-104 Frequency 2 104-109 18 13 109-114 114-119 119-124 124-129 129-134
5.) Find the mean, median, range, variance and standard deviation of the data set below. The data represent the fixed monthly costs for Sam's Linen Service. Monthly charges Monthly cost ($) Bank charges 482 Cleaning 2208 Food 1750 Computer expenses 2471 Lease payments 2656 Grounds fees 1475 Postage 2117 Uniforms 2600 Delivery fuel 955
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 51.9 miles per hour. Speed (miles per hour) Frequency 42 - 45 46-49 50 - 53 54 -57 58 -61 25 15 The mean of the frequency distribution is miles per hour. (Round to the nearest tenth as needed.)
Find the mean X̅ and the standard deviation S of the following data: i Xi 1 6 2 16 3 20 4 15 the mean X̅ = the standard deviation S =
The following frequency table gives the masses of 12 students in a statistics class. Mass (kg) Number of students 55 57 59 61 63 1 4 (a) Draw a frequency bar chart for the data.(Hypothetical) (b) Find, (i) the mode, (ii) the median. (c) Find the mean mass.
The lengths of 40 leaves of a plant are measured correct to the nearest millimeter. Less than Cumulative frequency of the data obtained is represented in the following table. Length (mm) |Less than cum freq 118-126 3 127-135 136-144 17 145-153 29 154-162 34 163-171 38 172-180 40 If you have to find the median of the distribution, what will be value of cf in the formula? O a 17 O b.29 Oc 12 Od. 20
Find the mean for the following grouped data. Interval Frequency 0-4 4 5-9 8 10-14 5 15-19 10 20-24 4 25-29 5

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a) Frequency (f) fx X? efi 15 6 90 1350 225 6 20 11 220 4400 400 17 25 17 425 10625 625 34 30 24 720 21600 900 58 35 14 490 17150 1225 72 40 8 320 12800 1600 80 Total n=80 Σέ2265 [fx²=67925 Find the values of: į, Mean ii. Median ii. Mode iv. Variance; v. Standard deviation