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Mathematics 19 Online
zarkam21:

Help please

zarkam21:

1 attachment
Vocaloid:

calculate the z-score for 140

zarkam21:

do I do that using software?

Vocaloid:

|dw:1506534536080:dw|

Vocaloid:

please use this formula to calculate the z-score

zarkam21:

what is x?

Vocaloid:

your given value (140)

zarkam21:

okay I got 40/15 =====2.6

Vocaloid:

good using a z-score to percentile converter I get 99.6% so A

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