3. Table 1 shows the median rent per m² in Berlin, for each of the 12 districts, and for all marketsegments, for the years 2020 (variable ✗) and 2021 (variable Y).For these data, the following is known:12IMi=1(b)12121212 forπ; = 124.31, Σy = 127.93, Στ = 1326.6657, Σy = 1408.3461, Σriyi = 1365.7266i=1Calculate and y.2=1i=1i=1Calculate the sample variance for X and Y. Hint: For the sample variancethe following formula holds:(c)(d)nΣ? - 2 Σ + nn1S=n-1i=1i=1Calculate the sample standard deviation for X and Y.Calculate the covariance and the correlation coefficient.Recall: The formula for the correlation coefficient issuitableSXYTXY =SXSY

To answer the questions, let's use the given information and formulas.Given:- n = 12 districts- ∑ X₁…

Answered: 3. Table 1 shows the median rent per m²…

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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C only
Item#3 A chemical engineer desiring to study the evaporation rate of water from brine evaporation beds obtained data on the number of inches of evaporation in each of 55 July days spread over 4 years. The data are given in the following stem and leaf plot, which shows that the smallest data value was o.02 inch, and the largest o.56 inch. Stem Leaf 0.0 2, 6 0.1 1, 4 1, 1, 1, 3, 3, 4, 5, 5, 5, 6, 9 0, 0, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 5, 6, 6, 7, 8, 9 0, 1, 2, 2, 2, 3, 4, 4, 4, 5, 5, 5, 7, 8, 8, 8, 9, 9 2, 5, 6 0.2 0.3 0.4 0.5 Find the: a) sample mean; b) sample median; c) sample standard deviation of these data. d) Do the data appear to be approximately normal? e) What percentage of data values are within 1 standard deviation of the mean?

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