The population in the city of Houston from 1900 to 2010 is given below:

Year Population
1900 44,633
1910 78,800
1920 138,276
1930 292,352
1940 384,514
1950 596,163
1960 938,219
1970 1,233,505
1980 1,595,138
1990 1,631,766
2000 1,953,631
2010 2,100,263

Give a scatter-plot and residual plot of the data.

Exercise: counting committees 0.0/2.0 puntos (calificable) we start with a pool of n people. a chaired committee consists of k≥1 members, out of whom one member is designated as the chairperson. the expression k(nk) can be interpreted as the number of possible chaired committees with k members. this is because we have (nk) choices for the k members, and once the members are chosen, there are then k choices for the chairperson. thus, c=∑k=1nk(nk) is the total number of possible chaired committees of any size. find the value of c (as a function of n ) by thinking about a different way of forming a chaired committee: first choose the chairperson, then choose the other members of the committee. the answer is of the form c=(α+nβ)2γn+δ. what are the values of α , β , γ , and δ ?