QUESTION ONE (a) Explain the following terms
(1) Random variable
(ii) Probability function
(iii) Expected value and Variance
(b) One thousand tickets are sold at TZS 1000 each for four prizes of Tzs 100,000, TZS50,
000, TZS 25,000, and TZS 10,000. After each Prize drawing, the winning ticket is then
returned to the pool of the tickets. required expected value if a person purchase two tickets ​

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

the answer is su.k.my? ? co.kc

i believe the answer is c.