Finding Areas Under the Normal Curve

Finding Areas Under the Normal Curve

Assessment

Interactive Video

Mathematics

9th - 12th Grade

Hard

Created by

Thomas White

FREE Resource

This video tutorial explains how to find areas under the standard normal curve using Z-scores. It covers finding areas to the left and right of both positive and negative Z-scores, as well as the area between two Z-scores. The tutorial demonstrates using Z-score tables and highlights the symmetry of the normal distribution to simplify calculations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of this video tutorial?

Finding the area under the standard normal curve using z-scores

Learning about probability distributions

Calculating the mean of a dataset

Understanding the concept of standard deviation

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When finding the area to the left of a negative z-score, what is the first step?

Calculate the mean

Use a calculator

Draw a picture of the standard normal curve

Find the standard deviation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the z-score value used in the first example for finding the area to the left?

-2.05

1.32

2.05

-1.32

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you find the area to the left of a negative z-score if you only have positive z-values?

Subtract from 1

Use the symmetry of the curve

Use a different table

Multiply by 2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the area to the left of z = 2.05?

0.0934

0.9798

0.0158

0.0708

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To find the area to the right of a negative z-score, what operation is performed?

Add the area to the left

Divide the area by 2

Subtract the area from 1

Multiply the area by 2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the alternative method for finding the area to the right of a negative z-score?

Calculate the mean

Look up the positive z-score

Use a different z-table

Use a calculator

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