Finding Probabilities with Table A
Grade 11th Grade · Math · 45 min
What's Included
Learning Objective
I can use Table A to find probabilities associated with a standard normal distribution.
Warm-Up Video
Joshua Emmanuel · 5:21
Normal Distribution: Calculating Probabilities/Areas (z-table)
Guided Notes
3 key concepts
- 1
The standard normal distribution (z-distribution) has a mean (µ) of 0 and a standard deviation (σ) of 1.
- 2
To convert a value, x, from a normal distribution to a z-score, use the formula z = (x-μ)/σ.
- 3
To find the area between two z-values, subtract the smaller area from the larger area obtained from the z-table.
Practice Questions
10 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Scores on a test are normally distributed with a mean of 70 and a standard deviation of 10. Using Table A, find the probability that a score is less than 60. Show your work.”
Complete Lesson Package
Get all 3 ready-to-use resources:
