What is the area under the standard normal curve corresponding to Z greater than 2.85? a) 0.0022...

Question:

What is the area under the standard normal curve corresponding to Z > 2.85?

a) 0.0022

b) 0.4978

c) 0.9978

d) 0.6103

Estimating Areas Under the Normal Curve Using Z Scores:

The standard normal curve or simply the normal curve is a unimodal (meaning that it has one mode/peak), bell-shaped, and symmetric curve about its mean zero. The area under the curve gives a cumulative probability, random variables take in a continuous distribution. The total area under the curve is equal to one.

Answer and Explanation: 1

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  • The answer is: a) 0.0022.

On the standard normal table (z table), locate 2.8 on the leftmost column and move along the row up to a column with 0.05...

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Estimating Areas Under the Normal Curve Using Z-Scores

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Chapter 6 / Lesson 7
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A z-score is the measurement of how far away a point is from the mean number. In this lesson, learn how to use statistical tables to graph z-scores and calculate the values between and beyond two z-scores.


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