(b) În the following frequency distribution of marks, one of the frequency is missing if the- arithmetic mean of the distribution is 52 find the missing frequency. Marks 0-20 20-40 40-60 60-80 80–100 No. of students 8 19 14 9.
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Q: se help answer fully
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- The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 15 14 4 7 19 12 16 5. 10 17 17 18 14 10 6 Complete the table, starting with the lowest class limit. (Simplify your answers.) Relative Cumulative Class Frequency Midpoint Frequency Frequency Which class has the greatest frequency? The class with the greatest frequency is from to Which class has the least frequency? The class with the least frequency from toThao earned the following scores on her six management exams last semester. 79, 79, 42, 88, 79, 93 Ф Find the mean, the median, and the mode for Thao's scores. The mean for Thao's scores is (Type an integer or a decimal. Round to the nearest hundredth as needed.)2. Using the frequency/percentage distribution table below to find the median, 12t percentile, 25th percentile (1" quartile), 75th percentile (3rd quartile) and inter-quartile range (1QR) for the variable "mumber of rooms in respondents' home or apartment." Write one sentence interpreting each statistics. Number of rooms Cumulative Frequency Percent Valid Percent Percent Valid 153 room 7 .8 .8 244 1.2 1.2 2.0 3 968 4.7 4.9 6.9 2507 12.1 12.8 19.7 3758 18.1 19.1 38.8 3972 19.1 20.2 59.1 2965 14.3 15.1 74.2 2186 10.5 11.1 85.3 1146 5.5 5.8 91.1 10 868 4.2 4.4 95.5 11 373 1.8 1.9 97.4 12 217 1.0 1.1 98.5 13 77 4 4 98.9 14 35 2 99.1 15 22 .1 .1 99.2 16 15 .1 .1 99.3 17 47 2 99.5 18 40 2 99.8 19 30 .1 99.9 20 9 .0 .0 99.9 21 5 100.0 22 .0 100.0 Total 19642 94.4 100.0 Missing N/A 1160 5.6 Total 20802 100.0
- The data to the right represent the top speed (in kilometers per hour) of all the players (except goaltenders) in a certain soccer league. Construct (a) a relative frequency distribution (b) a frequency histogram, and (c) a relative frequency histogram. What percentage of players had a top speed between 14 and 17.9 km/h? What percentage of players had a top speed less than 13.9 km/h? Speed (km/hr) Number of Players 10–13.9 4 14–17.9 8 18–21.9 18 22–25.9 76 26–29.9 268 30–33.9 177 (a) Construct a relative frequency distribution. Speed (km/hr) Relative Frequency 10–13.9 14–17.9 18–21.9 22–25.9 26-29.9 30–33.9 (Round to four decimal places as needed.)The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? C Complete the table, starting with the lowest class limit. (Simplify your answers.) Class Frequency Midpoint 17 "" Which class has the greatest frequency? The class with the greatest frequency is from to Which class has the least frequency? The class with the least frequency is from to 32 3 32 6 Relative Frequency 28 39 5 25 11 9 8 27 15 8 38 30 24 17 0 30 Cumulative Frequency Q