For the following data: $($Ordered$)$X$=1609$X$2=92875$ N$=30$

$30353738384042434343$

$444444484849$ fifty $525660$

$65657070707575758080$

a$)$ Average

b$)$ Calculate Q$1,$Q$2$ and Q$3$

c$)$ Variance $($Use computational formula$)$

d$)$ Standard deviation

e$)$ Coefficient of variation

f$)$ Range

g$)$ IQR

h$)$ Draw the Box$-$Plot $($Box$-$Wisker Diagram$)$

i$)$ Prepare a Stem and Leaf Diagram

j$)$ Prepare a Dot$-$Plot