Jiayang's answer to Chowder's Junior College 1 H3 Maths question.
I dont get it?
Standardisation. Given the probability you can find the z value from the table which is 0 in this case.
Alternatively you can just use your calculator using the invNorm function
Alternatively you can just use your calculator using the invNorm function
Do you know how to do standardisation?
No but i know the table. But how do u even get 0 ?
Probability is 0.5 so your z value is 0 (refer to the pic I just uploaded)
Standardisation:
If X~N(μ, σ²) and Z = (X − μ)/σ
Then Z~N(0, 1)
Standardisation:
If X~N(μ, σ²) and Z = (X − μ)/σ
Then Z~N(0, 1)
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