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Question 1
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The weights of the fish in a lake are normally distributed with mean 480 g and standard deviation 50 g.

Mary caught a fish from the lake.
The weight of the fish was 450 g.

a.

Calculate the standardised weight of Mary's fish.

[2]
b.

Julie and Pam each caught a fish from the lake.

The standardised weight of Julie's fish is -1.5.
The standardised weight of Pam's fish is 0.65.

Compare the weights of these two fish.

[1]

Standardised Scores Questions

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