1. Let f: Z/4Z → Z/2Z × Z/2Z be defined by f([0]) = ([0], [0]), ƒ([1]) = ([1], [1]), f([2]) = ([0], [1]), and ƒ([3]) = ([1], [0]). Is ƒ an isomorphism?

How to Compute t and p for the difference between means?

Compute the z-score for each of the six entertainment expenses. (Round z-score calculations to 2 decimal places.  Negative amounts should be indicated by a minus sign.)          z157      z132      z109      z145      z125      z139      I need the last three i answered te first three myself

3.3-4

Compute the indicated quantity. P(B) = 0.5, P(A ∩ B) = 0.2. Find P(A|B).

ss Grades and Attende Clesses Korthem Eurlington 2 me 3 4 5 6 7 8 9 10 . . • • • z=-8y+6 2x+2y=-2 Enter your solution in the blanks provided (0.0)