explain it please

1. Using the information gathered for real estate prices in Regina and surrounding areas in the early 2000s, determine the mean of the selling prices at that time. List prices, Regina and surrounding area List Price (x000) Frequency f*M MA2*f 50 to under 100 1050 78750 100 to under 150 125 2875 359375 150 to under 200 175 2800 490000 200 to under 250 225 4050 911250 250 to under 300 275 2200 605000 co In 300 to under 350 325 1625 528125 350 to under 400 375 1500 562500 400 to under 450 425 850 361250