"ple 29. Draw a less than ogive for the following frequency distribution: 1.Q. 70 - 80 90 – 100 | 100 – 110|110 – 120 120– 130 60 – 70 80 – 90 No. of 10 4 students 2 5 12 31 39
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- of This frequency table depicts the average hours spent on social media use for students in PSY201 class. Hours Frequency 4 3.5 3 2.5 2 1.5 1 0.5 0 10 5 5 3 7 16 0 5 3 How many students spent at least 3 hours on social media in PSY201?The following frequency distributiomn table represents the temperature (in °C) recorded on 37X days throughout a year. Temperature (°C) 15 - 18 18 - 21 21 - 24 24 - 27 27 - 30 30 - 33 33 - 36 36 - 39 Number of days 12 5X-1 30 10X+2 21 13 (X/2)+5 a. Compute the average temperature recorded during the period. Answer in exact fraction, or rounded to at least 4 decimal places °C b. Compute the median temperature recorded during the period. Answer in exact fraction, or rounded to at least 4 decimal places. °C c. Determine the variance in the temperature. Answer in exact fraction, or rounded to at least 4 decimal places. d. Find the Pearson's Coefficient of Skewness using the relation between Mean, Median and Standard Deviation. Answer in exact fraction, or rounded to at least 4 decimal places.Consider a frequency table that has 5 classes. The boundaries for class 1 are 0.9005 and 19.2545. What is the largest possible value in class 1?
- Q4S1 Construct a frequency distribution table with 5 classes. 90 80 98 102 74 93 92 96 90 100 87 102 89 97 90 94 87 78 103 92 83 92 101 94 82 93 81 91 91 84COMMUNITY PHARMACY 127th St In F of Marle (212) 926-7500 Fax (212) 426-5900 www.harian.com RHOOD PHARMACY m Southern X o Mail-Ald X W W3Scho X W' Exercise X 10 # of movies Frequency 0 1 Twenty-three randomly selected students were asked the number of movies they watched the previous week. The results are as follows. 2 3 4 4 Number of Movies Watched 9 6 3 Welcom 1 NCC-1701 X + V a. Select the correct histogram of the data, where a value is counted in a class interval if it falls on the left boundary, but not if it falls on the right boundary. ☐The frequency distribution below summarizes employee years of service for Alpha Corporation. Determine thewidth of each class. (Hint: We do not know the range here so we can't use a formula to find the class width.How can we determine it by just looking at the table?) Years of service Frequency1-5 56-10 2011-15 2516-20 1021-25 526-30 3
- State the reason why the following frequency distribution is incorrectly constructed.Class Frequency45-50 350-55 055-60 660-65 565-70 32. 25 values of two variables X and Y are given below. Form a two-way frequency table. Take classes of X as 10 to 20, 20 to 30 etc, that of Y as 100 to 200,200 to 300 etc. X 12 34 33 22 44 37 26 36 55 48 27 52 41 37 21 51 Y 140 266 360 470 470 380 480 315 420 390 440 312 330 390 590 250 X 27 42 43 52 57 44 48 48 69 Y 550 360 570 290 416 380 492 370 590 Obtain (i) the marginal frequency distributions of X and Y. (ii)the conditional distribution of X when Y lies between 300-400. (iii) the conditional distribution of Y when Y lies between 40-50.Consider the folilowing frequency table representing the scores on a test. Scores on a Test Class Frequency 50–57 14 58-65 7 66-73 10 74-81 8. 82-89 9 Step 4 of 5 Choose the interval that contains the score, 60.3. Answer O 50-57 O 58-65 O 66-73 O 74-81 O 82-89
- The data represent the ages of our Presidents at the time they were first inaugurated. 57 61 57 57 58 57 61 54 68 51 49 64 50 48 65 52 56 46 54 49 51 47 55 55 54 42 51 56 55 51 54 51 60 62 43 55 56 61 52 69 64 46 54 47 Construct a frequency distribution for the data. (Use 7 classes)It the upper class limits of the first two classes in a frequency table with equal class widths (lengths) are 22 and 28, respectively. then the midpoint (center) of the second class is O a. 24 O b. 24.5 O c. 25 O d. 28.5 O e. 21.5 Next page ch 00.Com hp11. 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 distribu- tion. 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