4.5 Activity/Exercise1. Using the midpoint method, compute for the mean of the followingfrequency distribution.Class interval49 - 5146-4843-4540 - 4237 - 3934 - 3631-3328 - 30Frequency35352215203. Complete the table below:Scores20-2930-3940-4950-5960-6970-7980-892. Make a frequency distribution for the IQ test results of 50 students.10012098 100 9810080 8583 92878990 981009.087 889185 8689 9094.951109088 92 9319091 92 93 8890 100No. ofstudentsa. Compute the mean, median and the mode.b. Interpret the results.5911(fi)Class interval25 - 2722 - 2419 21221316-1813 - 1510-127-973n = 70Frequency8781272199 10592 10088 898896 97 98105 110113Midpoint fixi(x))Cf<a. Compute the mean, median and mode scores of the distribution.Compare them.b. Which measure of central tendency will you use forsummarizing the mathematics scores of 70 students?

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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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Estimate the value of the mean for the data in the frequency distribution. classes Lower limit Upper limit Freq 22 26 8 27 31 5 32 36 10 37 41 23 42 46 4 47 51 20 52 56 18
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The following frequency distribution represents the scores on a math test. Find the class midpoint of scores for the interval 40-59. Number of Students 2 4 Scores 0-19 20-39 40-59 60-79 80-99 OA 49.0 OB. 49.5 OC. 48.5 OD. 50.5 655 C
Q1: Complete the following frequency table: Production In liters Number Farmer ? center Category ? Repetition Cumulative ?. ? 149 -100 5 199 -150 5 249 -200 8 299 -250 4 349 -300 2 Total 24 Calculate the mean, median and mode, then calculate the coefficient of variation. Examples data by the recurring curve method. Question2: The question measures the mental skills that the student acquired (c1) If you know that it is the lengths of a group of students, it follows a normal distribution with an arithmetic mean of 170 cm and a deflection 5 cm standard, one of the guys was randomly selected (X) Find from the following using the Z tables: P (X< 174) P (X≥ 185) P (179 ≤ X ≤ 182) Q3: This question measures the applied skills of the student (b1) Explain the relationship between the two variables. Find the equation of the yield…
Q2: The weight of 50 footballs players are listed below: 193 230 250 258 265 240 288 236 236 235 217 259 277 277 243 283 225 218 218 219 268 252 245 245 255 212 236 268 268 245 251 243 231 231 238 263 247 269 269 257 275 280 224 224 254 208 234 259 255 284 Construct the distribution of these 50 weights and convert it into frequency table with 10 classes beginning with 190. Also Construct Histogram using grouped data Compute three measure of center tendency and explain their relationship? Construct the Cumulative frequency curve (Ogive) of these data Construct the Box plot of this data (note: Q1= 234.5 and Q3= 264.5)
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Example 2-2. Calculate the mean for the following frequency distribution : Class interval : 0-8 8–16 16-24 24–32 32-40 40–48 Frequency : 8 7 16 24 15 7
The owner of an automobile repair shop studied the waiting times for customers who arrive at the shop for an oil change. The following data with waiting times in minutes were collected over a one-month period. 3 4 10 214 5 3 2310 11 9 166 14 6 92 22 16 7(a) Develop a frequency distribution using classes of 0-4, 5-9, 10-14, 15-19, and 20-24.Class Frequency 0-4 5-9 10-14 15-19 20-24 Total (b) Develop a relative frequency distribution using the classes in part (a). If required, round your answers to two decimal places. Class Relative Frequency 0-4 5-9 10-14 15-19 20-24 Total (c) Develop a cumulative frequency distribution using the classes in part (a). Class Cumulative Frequency 0-4 5-9 10-14 15-19 20-24
• 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
The data below shows time taken (in minutes) for 50 students to travel to their school from home.Time (minutes)23 16 16 17 1218 17 32 11 2711 16 22 18 2021 15 21 17 3432 14 18 21 2922 12 30 27 1627 20 21 14 2817 17 17 20 2613 20 27 26 1718 21 21 36 29 2. Draw a histogram based on your frequency distribution table.3. Give your comment about the distribution of the data based on your histogram.
The following table displays a relative frequency distribution for the number of siblings for students in a school. For a randomly selected student in the school, let X denote the number of siblings of the student. Number of Siblings Relative Frequency 0 0.1140 1 0.1420 2 0.7010 3 0.0210 4 0.0120 5 0.0065 6 0.0025 7 0.0010 P (X < 3) = ____________ P (X = 4) = ____________
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1. Using the midpoint method, compute for the mean of the following frequency distribution. Class interval 49 51 46 48 43 45 40 42 37 39 34 36 31-33 28 - 30 Frequency Class interval 3 5 3 5 2 252 15 20 25 27 22 24 19 - 21 16 18 15 12 630 13 10 11 7-9 Frequency 8 7 8 12 7 2