B. Present these given Math grades of high school students in the indicated data organization.8979928790 808391877980 8199 75847590c. Ogived. Stem leafe. Box and whisker897782a. Make a frequency distribution.b. Histogram88 938782 90 95859093 8780 8084 6792 86 769075 76

Data 67 75 75 75 76 76 77 79 79 80 80 80 80 81 82 82 83 84 84…

Answered: B. Present these given Math grades of…

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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Students were asked what grades they usually get in school. For twelfth-grade students who responded to this question and the question about how often they wear seatbelts when driving, a summary of frequency counts for combinations of responses to the two questions is as follows. WearsSeatbelt Usual School Grades A and B C D and F Total Never 55 40 17 112 Rarely 129 95 21 245 Sometimes 168 109 9 286 Most times 290 129 25 444 Always 1,059 305 50 1,414 Total 1,701 678 122 2,501 (a) The total number of students in the table is 2,501. What percentage of these 2,501 students said that they usually get A's and B's in school? (Round your answer to one decimal place.) % (b) What percentage of the 1,701 students who said that they usually get A's and B's said that they always wear a seatbelt when driving? (Round your answer to one decimal place.) % (c) What percentage of the 678 students who said that they usually get C's said that they always wear a…
Second image is data set
Finish times (to the nearest hour) for 59 dogsled teams are shown below. Draw a relative-frequency histogram. Use five classes. 261 274 236 244 280 296 284 296 288 288 250 256 338 360 341 333 261 267 287 296 313 311 307 307 299 303 277 283 304 305 286 290 286 287 297 299 332 330 309 326 307 326 285 291 295 298 306 315 310 318 318 320 333 321 323 324 327 302 319 The frequency table for the above data is given below. Class Limits Boundaries Midpoint Freq. Relative Freq. Cumulative Freq. 236 – 260 235.5 – 260.5 248 4 0.07 4 261 – 285 260.5 – 285.5 273 9 0.15 13 286 – 310 285.5 – 310.5 298 26 0.44 39 311 – 335 310.5 – 335.5 323 17 0.29 56 336 – 360 335.5 – 360.5 348 3 0.05 59
what is the mean of the data set?
A drink vendor randomly asked college students how many soft drinks they had consumed during the past week. Their answers were as follows: 5,0,2,1.1.9,0,1,0,3,1.1.4,3,4, and 7. a. Make a frequency table (NOT grouped). b. Make a histogram based on the frequency table. c. Make a frequency polygon based on the frequency table. d. Describe the shape of the histogram (i.e., mode?, skewed? etc.).
Find the 25th, 50th, and 75th percentile from the following list of 25 observations. 9. 15 24 31 35 38 42 48 49 54 57 60 62 72 73 74 76 78 80 89 92 93 94 99 25th percentile = 50th percentile = 75th percentile %3D
For the following data 57 62 45 87 52 77 80 66 67 71 82 90 92 43 65 56 48 91 82 68 74 80 83 46 62 72 81 52 91 43 58 68 81 90 70 66 71 74 60 55 1.Classify the following data (Make 6 classes) with its frequencies 2. find the mean and median and range of this data 3. draw the histogram and polygon.
B. Present these given Math grades of high school students in the indicated data organization. 88 93 80 80 90 95 84 67 90 92 93 87 75 89 79 92 87 90 83 87 80 80 91 79 81 d. Stem leaf e. Box and whisker 99 1878 89 77 82 75 87 84 82 75 85 90 86 76 76 90
(a) Determine the population mean pulse. The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). The population mean pulse is approximately beats per minute. (Round to one decimal place as needed.) Student Pulse O Perpectual Bempah 81 Megan Brooks Jeff Honeycutt 75 75 Clarice Jefferson 84 Crystal Kurtenbach 90 Janette Lantka 71 Kevin McCarthy 67 Tammy Ohm 71 Kathy Wojdya 85
Combine the two sets of data into one group. Determine the median and express in percent the number of students from each group whose scorce are below the median and above the median.
Create a histogram/frequency polygon, frequency distributuion table, and stem and leaf plot based on the data given (see attached file)
The following data represent salaries, in thousands of dollars, for employees of a small company. Notice the data have been sorted in increasing order. 54 55 55 57 57 59 60 65 65 65 66 68 68 69 69 70 70 70 75 75 75 75 77 82 82 82 88 89 89 91 91 97 98 98 98 280 a. Make a histogram using the class boundaries 53.5, 99.5, 145.5, 191.5, 237.5, 283.5 b. Look at the last data value. Does it appear to be outlier? Could this be the owners salary? c. Eliminate the high salary of 280 thousand dollars. Make a new histogram using the class boundaries 53.5, 62.5, 71.5, 80.5, 89.5, 98.5. Does this histogram reflect the salary distribution of most of the employees better than the histogram in part a?

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B. Present these given Math grades of high school students in the indicated data organization. 89 79 92 87 90 83 87 80 80 91 79 81 99 75 87 89 84 82 77 75 85 82 90 a. Make a frequency distribution. b. Histogram c. Ogive 93 88 93 90 90 92 87 75 80 80 67 95 84 86 76 76 90