50. You are given the following information relating to a frequency distributioncomprising 10 observations :X- 5.5, Y= 4.0, ΣX2- 385 , ΣY2- 192E (X+ Y = 947. Find rxya b 38TS = X3

Answered: 50. You are given the following…

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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4:18 K 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 26 and 29.9 km/h? What percentage of players had a top speed less than 13.9 km/h? (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.) (b) Choose the correct frequency histogram below. O A. C. O A. Frequency C. Frequency 300- 200- 100- 300 200- 100+ 0.6 0.4- 0.2- 18 22 26 30 34 Speed (km/hr) (c) Choose the correct relative frequency histogram below. 0- 10 0.6 0.4- 0.2- 0- 0- 10 14 0- 10 10 14 Relative Frequency 18 22 26 30 34 Speed (km/hr) 14 18 22 26 30 34 Speed (km/hr) Relative Frequency 14 ||| 18 22 26 30 34 Speed (km/hr) = B. D. O OB. D. Frequency Frequency…
Refer to the accompanying data set and use the 30 screw lengths to construct a frequency Begin with a lower classlimit of 3.720 in., and use a class width of 0.010 in. The screws were labeled as having a length of 3 3 / 4 in. 1 Click on icon to view the data. Complete the frequency distribution below. Length (in.) Frequency 3.720 − − − − − (Type integers or decimals rounded to the nearest thousandth as needed.) 1: Data Table Screw Lengths (inches) 3.765 3.757 3.741 3.755 3.736 3.746 3.756 3.722 3.755 3.758 3.754 3.744 3.743 3.735 3.753 3.755 3.737 3.736 3.741 3.742 3.742 3.766 3.753 3.759 3.748 3.736 3.758 3.751 3.752 3.748
1:25 K 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 18 and 21.9 km/h? What percentage of players had a top speed less than 13.9 km/h? (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.) (b) Choose the correct frequency histogram below. O A. O C. O A. Frequency O C. Frequency 300- 200- 100- 300 200- 100- 0.6 0.4- 0.2- 18 22 26 30 34 Speed (km/hr) (c) Choose the correct relative frequency histogram below. 0- 0- 10 0.6- 0.4- 0.2- 10 14 0- 0- 10 10 14 Relative Frequency 18 22 26 30 34 Speed (km/hr) Relative Frequency 14 18 22 26 30 Speed (km/hr) ||| 14 = 18 22 26 Speed (km/hr) Q 34 G 30 34 O B. O O D. O B. O D.…
Table 3 shows the distribution for the number of medical leaves (in days) taken within a certain period by 65 employees of accompany. Number of medical leaves Number of employees (days) 1-3 4 4 -6 7-9 8 10 - 12 12 13 - 15 18 16 - 18 11 19 - 21 Table 3: The number of medical leaves (in days) (a) Draw a cummulative frequency curve to illustrate the data. (Note : Use graph sheet) (b) Using the ogive in question 4(a), estimate the median and third quartile value. (c) Calculate the mean, and standard deviation from the data given in Table 3.
Illustration 19.34. A persón buys 100 electric tubes each of two well-known makes, taken at random from the stocks for testing pur- pose. He finds that make A has a mean life of 1300 hrs with SD=82 hrs, and make B has a mean life of 1248 hrs with SD=93 hrs. Dis- cuss the significance of these results.
43. From the following data compute the value of harmonic mean: 20-30 30-40 40-50 10-20 50-60 Class interval 6 S 10 7. Frequency
Illustration 19.29. Standard deviations In two samples of size 100 each were found to be 13.9 and 17.6. If population standard deviation is 15, is there any significant difference between two standard devia- tions?
1:18 K 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 22 and 25.9 km/h? What percentage of players had a top speed less than 13.9 km/h? (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.) (b) Choose the correct frequency histogram below. O A. O C. O A. Frequency O C. Frequency 300- 200- 100- (c) Choose the correct relative frequency histogram below. 0.6 0.4 0.2- 300- 200- 100- 0- 10 0.6 0.4- 0.2 0- ||| 0- 10 14 18 22 26 30 34 Speed (km/hr) = 0- 10 14 18 22 26 30 34 Speed (km/hr) Relative Frequency 10 14 18 22 26 Speed (km/hr) Relative Frequency 14 18 22 26 Speed (km/hr) 30 34 Q 30 34 Q Q O B. O D. O B. O D.…
Q. 32. Calculate Q, and Qs for the following frequency distribution; Class Interval Frequency c.f. 5--9 10-14 6. 11 15-19 15 26 I 20-24 10 36 25-29 41 II 30-34 4 45 35-39 47 40-44 49 N=49

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50. You are given the following information relating to a frequency distribution comprising 10 observations : X= 5.5, Y= 4.0, EX2 = 385, E Y2 = 192 E (X+ Y = 947. Find rxy EX- S18