Question

Using program R, please help solve:

Data set is in the program R. Can be found by inputing code:

require(UsingR)

homedata

(if answered by Tuesday 6/11 evening, I will rate)

3.13 For the homedat a (UsingR) data set, make a histogram and density es- timate of the multiplicative change in values (the variable y2000/y 1970). De- scribe the shape, and explain why it is shaped thus. (Hint: There are two sides to the tracks.)

Answer 1

library(usingR) > data("homedata") > names Chomedata) [1] "y1970" "y2000" > y1970-homedatasy1970 y2000=homedatasy2000 > ## histogram for variable y1970 histly1970) Histogram of y1970 0 50000 100000 200000 300000 y1970 000€ 0000 000 Frequency

## it is positively skewed > > ### histogram for variable y2000 > hist (y2000) Histogram of y2000 0 200000 600000 1000000 y2000 > ### it is positively skewed > ### here both varible graph is positively skewed because > ## distribution has a large number of occurrences in > ## the 1lower value cells (left side) and few in the upper value cells (right side) > ## that is tail of the distribution is right side 0090 009 0 Frequency