7.2 consider complex qpsk, 8-psk, and 16-qam baseband modulations. for unit-variance noise power and snr 10 db, draw and plot a sequence of 100 random symbols by using simulation. (a) by using matlab, plot resulting constellation for each modulation. (b) apply a normalized frequency shift of 1/800, and plot the constellations in absence of noise.

Ron and nick chose to start their own businesses. ron wanted to start an ice cream shop, and nick wanted to launch a television manufacturing company. ron and nick had equal amounts of funds on hand and no government regulations restricting them. months later, however, ron has already set up his business, while nick is still struggling to raise additional funds to build a factory. what was the main factor that affected nick’s business? a. an irrelevant business idea b. low demand for tvs in his country c. high start-up costs d. lack of labor economics