Question

pls do it fast................​

Answer 1

Answer:

CI. F. X. FX

10-25. 2. 17.5. 35

25-40. 3. 32.5. 97.5

40-55. 7. 47.5. 332.5

55-70. 6. 62.5. 375

70-85. 6. 77.5. 465

85-100. 6. 92.5. 555

F=30, Fx=1860

X = 1860 / 30

X= 62