Seudónimo Seudónimo
  • 13-04-2020
  • Mathematics
contestada

please help me with this question I will give you 66 points​

please help me with this question I will give you 66 points class=

Respuesta :

amna04352
amna04352 amna04352
  • 13-04-2020

Answer:

51.3

Step-by-step explanation:

20-30: 100

30-40: 220-100 = 120

40-50: 350-220 = 130

50-60: 750-350 = 400

60-70: 950-750 = 200

70-80: 1000-950 = 50

Mean = sum(f × x) / sum(f)

= [25×100 + 35×120 + 45×130 + 55×400 + 65×200 + 75×50] ÷ 1000

= 51,300 ÷ 1000

= 51.3

Answer Link
freemanashton2003
freemanashton2003 freemanashton2003
  • 16-04-2020

Answer:

53.1

Step-by-step explanation:

Answer Link

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