Consider the triangle with vertices (0, 0), (1, 0), (0, 1). Suppose that (X, Y) is a uniformly chosen random point from this triangle. (a) Sketch the support of joint distribution (X, Y). (b) Find the marginal density functions of X and Y. (c) Calculate the expectations E[X] and E[Y]. (d) Calculate the expectation E[XY]. (e) Determine whether X and Y are independent.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

can you make your screen more see able?

then i might be able to .

can you post the graph?