hannah749315 hannah749315
  • 12-09-2019
  • Mathematics
contestada

A set of data has a mean of 45.6 what is the mean if 5.0 is added to each score

Respuesta :

aquialaska aquialaska
  • 12-09-2019

Answer:

The mean will be increased by 5

Step-by-step explanation:

Suppose a set of data [tex](2, 4, 6, 8, 10, 12)[/tex]

Mean is defined as sum of all the values given set of data divided by total number of values.

Mean1 = [tex]\frac{2+4+6+8+10+12}{6} = \frac{42}{6} = 7[/tex]

Now if we add 5 toeach value, the new set becomes [tex](7, 9, 11, 13, 15, 17)[/tex]

for which,

Mean2 = [tex]\frac{7+9+11+13+15+17}{6} = \frac{72}{6} = 12[/tex]

Mean2 - Mean1 = 5

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