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3 years ago

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Mathematics

1 answer:

Taya2010 [7]3 years ago

3 0

Answer:

the z score of 105 is 1.03

Step-by-step explanation:

Given that

the mean is 102

And, the standard deviation is 2.9

We need to find the z score of 105

As we know that

Z score = (Observed value - mean) ÷ standard deviation

= (105 - 102) ÷ 2.9

= 1.03

Hence, the z score of 105 is 1.03

The same would be considered and relevant

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Use the FOIL method to simplify (first, outside, inside, last):

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Simplify

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Re-insert

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Move all terms to one side

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