1. Find the smallest and the largest elements of the given set. Also the lub and glb whenever they exist.
(a) B= {2+1 | n Element of natural number }
(b) C = {2} 2 € (1,1)} U{|neN}
2. Using the Principle of Mathematical Induction, prove that
(a) 2^2n+1 +7 is a multiple of 3 for n greater than or equal to 1
B) n!>3^n

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?