1a) Use Matlab to compute and simulate the roots of the following function; (i) 5x4+21x2−14x+30=0 (ii) x4−4=0 b). It is known that only 60% of a defected computer can be repaired. A sample of 8 computers is selected randomly, find the probability that; (i) At most 3 computers can be repaired. (ii) 5 or less can be repaired (iii) None can be repaired Based on your output for these, how will you have advised after a critical analysis from your output.

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1a) Use Matlab to compute and simulate the roots of the following function;
(i) 5x4+21x2−14x+30=0
(ii) x4−4=0

b). It is known that only 60% of a defected computer can be
repaired. A sample of 8 computers is selected randomly, find
the probability that;
(i) At most 3 computers can be repaired.
(ii) 5 or less can be repaired
(iii) None can be repaired
Based on your output for these, how will you have advised after a critical analysis from your output.

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