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Course: Statistics and probability?>?Unit 4
Lesson 6: Normal distribution calculations- Standard normal table for proportion below
- Standard normal table for proportion above
- Standard normal table for proportion between values
- Normal distribution: Area above or below a point
- Normal distribution: Area between two points
- Finding z-score for a percentile
- Threshold for low percentile
- Normal calculations in reverse
- Basic normal calculations
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Normal distribution: Area above or below a point
You might need: Calculator,Z table
Problem
A set of magical wand prices are normally distributed with a mean of dollars and a standard deviation of dollars. A blackthorn wand has a price of dollars.
What proportion of wand prices are lower than the price of the blackthorn wand?
You may round your answer to four decimal places.
You may round your answer to four decimal places.