You are given the following information relating to a frequency distributioncomprising 10 observations :X- 5.5, Y= 4.0, ΣΧ2= 385, Σ Υ2- 192E (X+ Y? = 947. Find rxy%3D

We have given that We have to find the correlation coefficient between X and Y :

Answered: You are given the following information…

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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Illustration 10.21. The values of the arithmetic mean and the standard deviation of the following frequency distribution of a continuous variable derived from short-cut method are 135.3 lbs. and 9.6 lb. respectively. -4 -3 -2 -1 1 2 Total Freq. 5 8. 18 22 13 80 Determine the actual class interval. 34
Illustration 9. From the following observations, relating to the number of seeds germinated out of 10 seeds on damp filter from 100 sets of 10 seeds fit a binomial distribution for the data : No. of seeds germinated : 0 No. of sets : 1 2 3 4 6. 7 6. 10 6. 39 28 12 8. ㅇ
Twenty batteries were tested to see how many hours they would last. The following grouped frequency distribution illustrates the results. Class Class Frequency Midpoint f Rel. Rel. Cummulative Cumm. Limits Boundaries Freq 1/20 = 0.05 Freq % m Freq. 1/20 = 0.05 Freq % 1- 3 0.50 – 3.5 1 4- 6 3.5 - 6.5 3 5 3/20 = 0.15 15 4/20 = 0.20 20 7-9 6.5 – 9.5 4 8 4/20 = 0.20 20 8/20 = 0.40 40 10 12 13 15 9.5 12.5 11 5/20 = 0.25 25 13/20 = 0.65 65 12.5 – 15.5 7 14 7/20 = 0.35 35 20/20 = 1.00 100 Totals 20 1.00 100 Using the data from the above grouped frequency distribution, construct a grouped frequency ogive.
Resting Pulse: earlier this semester we determined our resting pulse. Seventy-nine individuals participated in this data collection. The mean heart rate for all individuals was 65.34 beats per minute. A random sample of 30 heart rates having a mean of 64.97 beats per minute is presented here. Build a frequency table of these data containing six (6) classes with the lower llimit of the second class at 54 beats per minute. Build a chart appropriate for the presentation of these data. Data: 49, 51, 53, 56, 57, 58, 60 , 60, 62, 62, 62, 64, 64 65, 65 , 65, 67, 68, 68, 68, 69, 70 , 70, 72, 72, 72, 72, 75, 75 , 78,
Illustration 11.13. From the following frequéncy distribution cal- culate the first four moments, B1 and B2. Class 10-14 1 15-19 4 20-24 8. 25-29 19 30-34 35 35-39 20 40-44 45 –49 1 50-54 5
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.
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6a.) Draw the graphs. Round your final answers up to 6 decimal places, if applicable. Give the correct units.
I need the answer as soon as possible
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.)
Given the following histogram for a set of data, how many values in the data set are greater than 10.5 but less than 12.5? A histogram has a horizontal axis labeled Values from 7.5 to 16.5 in increments of 1 and a vertical axis labeled Frequency from 0 to 6 in increments of 1. The histogram has vertical bars of width 1, starting at the horizontal axis value of 7.5. The approximate heights of the bars are as follows, where the horizontal axis label is listed first and the approximate height is listed second: 7.5, 1; 8.5, 2; 9.5, 3; 10.5, 2; 11.5, 3; 12.5, 4; 13.5, 1; 14.5, 5; 15.5, 6.
I'm not sure where is my mistake solving this problem. I have revised my calculation three times already and I'm not sure if the step to solve it is wrong or if it is my rounding the problem. Thank you for your help

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You are given the following information relating to a frequency distribution comprising 10 observations : X- 5.5, Y= 4.0, Σχ2- 385, ΣY2- 192 E (X+ Y? = 947. Find rxy %3D