Finding Probabilities with Table A
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Objective
I can use Table A to find probabilities associated with a standard normal distribution.
Part 1 of 4
Warm-up video
Joshua Emmanuel · 5:21
We don't generate video — this one is by Joshua Emmanuel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 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.
Part 3 of 4
Practice
10 questions
What are the mean and standard deviation of the standard normal distribution?
What is the total area under the standard normal curve?
Part 4 of 4
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.”
Sample answer included in the free materials
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