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21 Which of the following statements regarding price level or inflation is correct A Supply and demand cannot explain why a particular good or service becomes more expensive relative to other goods and services B Inflation affects only the more advanced countries whereas less advanced countries face deflation C Prices of most goods and services remained stable during the great depression D In general when the economy is in recession and jobs are hard to find inflation tends to fall

Choose which reasoning process is shown in the following example Explain your answer An HMO does a follow up study on 1329 randomly selected patients given a flu shot None of these people became seriously ill with the flu The study concludes that all HMO patients be urged to get a flu shot in order to prevent a serious case of the flu B Choose the correct answer below OA It is deductive reasoning because additional information may prove that other patients may not have taken the flu shot and still did not catch a serious case of the flu B It is deductive reasoning because a general conclusion is drawn based on specific observations C It is inductive reasoning because a general conclusion is drawn based on specific observations D It is inductive reasoning because the flu is epidemic If someone does not take the flu shot there is a great possibility for that person to catch a serious case of the flu

A SCHOLARSHIPS FOUR OF EIGHT FINALISTS WILL BE SELECTED AND AWARDED 10 000 SCHOLARSHIPS IN HOW MANY WAYS CAN THIS SELECTION BE MADE B PRIZES A TEACHER DECIDES TO GIVE SIX DIFFERENT PRIZES TO SIX OF THE 30 STUDENTS IN HER CLASS IN HOW MANY WAYS CAN SHE DO SO

Rewrite this number in appropriate scientific notation 905

Betsy a recent retiree requires 6 000 per year in extra income She has 70 000 to invest and can invest in B rat bonds paying 15 per year or in a certificate of deposit CD paying 7 per year How much money should be invested in each to realize exactly 6 000 in interest per year The amount of money invested at 15 The amount of money invested at 7

What percent of 200 is 190

What is the probability that either event A or event B will occur Start by finding the probability of event A 4 19 3 19 A 10 19 P A B 2 19 19

The impulse response of the discrete causal system is y n 2y n 1 3x n 1 is 01 h n 3 2n 2u n 2 O 2 h n 32 22n 1u n 1 O 3 None of the answers 4 h n 3 2 1u n 1 h n Ek 2 1u n 1 O 5

The minimum sampling rate necessary to reconstruct the sampled version of the signal 10 cos 60nt 5 sin 120nt 7 is x t O 1 60 samples sec O 2 None of the answers O 3 180 samples sec O 4 240 samples sec O 5 120 samples sec

5 The integration 10 cos 4nt t 1 dt 5 8 O 1 10 O 2 40 O 3 None of the answers O 4 40pi O 5 20pi