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What else can I help you with?
Is the area under the standard normal distribution to the left of z equals 0 negative?
The Z value is negative, but area is always positive.
In which cases normal distribution is continuos and is not continuous?
The normal distribution is always continuous.
The distribution of sample means is not always a normal distribution Under what circumstances will the distribution of sample means not be normal?
The distribution of sample means will not be normal if the number of samples does not reach 30.
Is the mean always zero in a normal distribution?
No.
How the symmetric distribution is always normal?
The statement is false. The binomial distribution (discrete) or uniform distribution (discrete or continuous) are symmetrical but they are not normal. There are others.
Is the area under the standard normal distribution to the left of z equals 0 negative?
The Z value is negative, but area is always positive.
Is the a normal distribution curve negative or positive?
Neither. It is symmetrical.
If the mean of a normal distribution is negative what is the varience?
The variance is always positive. The variance is not directly related to the sign (nor magnitude) of the mean.
What does a negative kurtosis mean?
It means distribution is flater then [than] a normal distribution and if kurtosis is positive[,] then it means that distribution is sharper then [than] a normal distribution. Normal (bell shape) distribution has zero kurtosis.
How do you determine if the critical z value of a standard normal distribution is positive or negative?
Use the context: if the variable should be greater than the mean then z is positive and if less than the mean, it should be negative.
Can the variance of a normally distributed random variable be negative?
No. The variance of any distribution is the sum of the squares of the deviation from the mean. Since the square of the deviation is essentially the square of the absolute value of the deviation, that means the variance is always positive, be the distribution normal, poisson, or other.
In which cases normal distribution is continuos and is not continuous?
The normal distribution is always continuous.
What is the different between standard normal distribution and normal distribution?
A normal distribution can have any value for its mean and any positive value for its variance. A standard normal distribution has mean 0 and variance 1.
What is the answer to negative fifteen divided by positive three?
Negative 5. It's normal division, except you need to remember these rules: Positive & Negative = Negative Positive & Positive = Positive
Is the standard normal distribution is continuous?
Yes, the normal distribution, standard or not is always continuous.
Is a theoretical normal distribution ever negative?
Yes.
What happen when you divide negative and positive number?
When you divide or multiply positive and negative numbers, you first do the division or multiplication as normal. The next step is to assess whether or not the answer will be negative or positive. If the two numbers of the question were the same (negative and negative or positive and positive) then the answer will be positive. If the two numbers in the question were different (one negative and one positive) then the answer will be negative. Thus, if you divide a negative number by a positive number, the result will be the same as normal division, but the answer will be negative.
