Standardised Normal Distribution [Hinge Questions]

This post is to check understanding of normal distributions when students are required to standardise. Note that the answers given are from using the normal table to look up P(Z < z), not a calculator method.

Normal Distribution hinge q 1_1

a) The student mixed their units and so ended up with an incorrect z value
b) Correct answer
c) Student used the standardised value as the probability
d) Student made an error in the standardising formula (rather than X – μ, student did μ – X)
e) Student looked up the value given (1.45) rather than standardising

In case you wondered; this is for a different class 😉

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This entry was posted in Classroom, General Maths Thoughts, Hinge Questions, Lessons, Pedagogy and tagged , , , , , . Bookmark the permalink.

One Response to Standardised Normal Distribution [Hinge Questions]

  1. Pingback: 7 Days of Maths https://spectatormaths.wordpress.com #4 | Solve My Maths

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