answersLogoWhite

0


Best Answer

The area under any probability density function including the normal distribution must equal 1, as the sum of the probabilities of all outcomes must equal 1.

However, as the domain of outcomes goes from minus infinity to positive infinity, this fact is a theoretical one, and any practical problem will have cumulative probabilities less than 1.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What area under a normal curve adds up to?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

He area under the standard normal curve is?

The area under the standard normal curve is 1.


The area under the normal curve is greatest in which scenario?

The area under the normal curve is ALWAYS 1.


What is the area under the standard normal curve?

the standard normal curve 2


What is the area under the normal curve between Z0.0 and Z1.79?

What is the area under the normal curve between z=0.0 and z=1.79?


The area under a normal curve with mu equals 8 and sigma equals 3 is?

The area under a normal curve with mu = 8 and sigma = 3 is


What is the area under the normal curve between z equals 0.0 and z equals 2.0?

What is the area under the normal curve between z equals 0.0 and z equals 2.0?


Is The total area under the curve of any normal distribution is 1.0?

yes because 1 = 100% so the entire area under the curve is 100%


What is called area under normal curve?

It is called ONE = 1.


What is the total area under the normal distribution curve?

The area under the normal distribution curve represents the probability of an event occurring that is normally distributed. So, the area under the entire normal distribution curve must be 1 (equal to 100%). For example, if the mean (average) male height is 5'10" then there is a 50% chance that a randomly selected male will have a height that is below or exactly 5'10". This is because the area under the normal curve from the left hand side up to the mean consists of half of the entire area of the normal curve. This leads us to the definitions of z-scores and standard deviations to represent how far along the normal curve a particular value is. We can calculate the likelihood of the value by finding the area under the normal curve to that point, usually by using a z-score cdf (cumulative density function) utility of a calculator or statistics software.


What are the characteristics of a normal distribution curve?

Characteristics of a Normal Distribution1) Continuous Random Variable.2) Mound or Bell-shaped curve.3) The normal curve extends indefinitely in both directions, approaching, but never touching, the horizontal axis as it does so.4) Unimodal5) Mean = Median = Mode6) Symmetrical with respect to the meanThat is, 50% of the area (data) under the curve lies to the left ofthe mean and 50% of the area (data) under the curve liesto the right of the mean.7) (a) 68% of the area (data) under the curve is within onestandard deviation of the mean(b) 95% of the area (data) under the curve is within twostandard deviations of the mean(c) 99.7% of the area (data) under the curve is within threestandard deviations of the mean8) The total area under the normal curve is equal to 1.


What area is to the left of z equals -2.37 under that standard normal curve?

The area is 0.008894


What does area have to do with probability?

A normalized probability distribution curve has an area under the curve of 1.Note: I said "normalized", not "normal". Do not confuse the terms.