Respuesta :

Answer:

The mean absolute deviation for the test scores 84·5

Step-by-step explanation:

6 students have score marks in test

  1. 88
  2. 87
  3. 91
  4. 70
  5. 72
  6. 99

Total marks of 6 students is 507

The mean absolute deviation [tex]=[/tex] [tex]([/tex] Sum of the 6 students test score ÷ Total number of the students [tex])[/tex]

                                                   [tex]=[/tex]  507 ÷ 6

                                                   [tex]=[/tex]  84·5