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22 April, 01:48

The table below shows the scores on a math test.

David

75

Aaron

75

Ashley

60

Gina

75

Andrew

75

Kei

95

Monica

100

Anna

60

Lucas

75

Jennifer

65

The number of standard deviations between a score and the mean score is indicated by a z-score. What was Ashley's z-score on the math test?

a.

1.1

c.

-1.1

b.

60

d.

-15.5

+4
Answers (1)
  1. 22 April, 04:22
    0
    D because the total of the marks is 755 which is divided by number of score which is 10 making it 75.5 which is then taken away from 60 giving - 15.5
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