This very difficult questions must be answered correctly and as soon as possible. Thanks!

1. What is employed by the parallel out shift as a way of maintaining output data accuracy? Consider 4-bit series.

2. Suppose x =1, we can say that x=x+2 or x=0'. Determine therefore what will be the value of x assuming that x now equals to 5

3. Determine the equivalent of A B and illustrate.

4. Illustrate the value of P(A B) given that P(A B) = 0.2 and P(A) = 0.4.

5. Through a survey those who go to work in a bike are represented by 0.33, car = 0.42 and 0.12 use both. Determine the probability of randomly selecting one that does not use any of the three.

6. Given that B is a perfect subset of A and P(a < Pb), determine the equal of P(b) - P(a).

7. Six out of 30 cartridges in a box are spoilt. If 3 are removed from the box and there is no replacement, determine the probability that the 3 cartridges are defective.

8. Determine the probability of a class choosing maths if half of the students are girls. 0.4 represents the boys who opted for maths while 0.6 represents the girls.

9. Given the signal x(n)=cosn/3, determine the Fourier series coefficients.

10. Given a periodic signal x(t), determine the equation that will express the average power.