Respuesta :
Answer:
the new mean will be 82 and the new median will be 80
Step-by-step explanation:
boom roasted
The new mean will be 82.0 and the new median will
be 80.0
Given the scores : 71, 75, 76, 80, 85, 87
Arranging the values on ascending order :
71, 75, 76, 80, 85, 87
Obtaining a score of 100 in the 7th quiz, the scores becomes :
71, 75, 76, 80, 85, 87, 100
The mean : ΣX/ n
The mean = (71+75+76+80+85+87+100) / 7 = 574 / 7 = 82
The median = 1/2(n+1)th term.
The median = 1/2(7+1)th term
The median = 4th term
The 4th term in the distribution is = 80
Hence, the mean value = 82 and the median is 80
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