Question

Some normal probability distributions are negatively skewed True False

Some normal probability distributions are negatively skewed

True

False

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

When referring to the normal distribution, there is not just 'one' , there is a family of normal distributions.

In statistics, the normal distribution or the Gaussian distribution is a bell shaped distribution which is symmetric about its mean . The mean divides the distribution into two equal areas , that is , for a normal distribution,

Mean = median = mode

This implies the symmetricity of the distribution.

Hence, a normal distribution can never be skewed , whether positively or negatively. None of the distribution in the family of normal distributions is skewed.

The answer is :- false

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How is the t-distribution similar to the standard normal z-distribution? Multiple Choice Both are skewed distributions....
How is the t-distribution similar to the standard normal z-distribution? Multiple Choice Both are skewed distributions. Both are continuous distributions. Both are discrete distributions. Both are families of distributions.
which of the following is true for normal probability distribution? The distribution is right skewed when...
which of the following is true for normal probability distribution? The distribution is right skewed when the mean is greater than 100 The probability of X being between two particular values is equivalent to the under the density curve between the two particulars value. The density curve can appear above and below the x axis The probability that X=x can be any value between 0 and 1
How does a positively skewed distribution differ in appearance from a negatively skewed one?
How does a positively skewed distribution differ in appearance from a negatively skewed one?
how does a positively skewed distribution differ in appearance from a negatively skewed one?
how does a positively skewed distribution differ in appearance from a negatively skewed one?
1) Which of the following is true of normal distributions? A) The median and mode are...
1) Which of the following is true of normal distributions? A) The median and mode are equal. B) Its measure of skewness is always greater than 1. C) The range of the random variable X is bounded. D) Mathematical formulas make it easier to compute normal distributions. 2) Sampling errors occur because the means cannot be accurately estimated using samples. True or False?
Question 3 The text mentions that in order to use the normal distribution for binomial distributions...
Question 3 The text mentions that in order to use the normal distribution for binomial distributions that EITHER n(p) OR n(q) must be > 5. True False Question 4 The reason that both n(p) and n(q) are > 5 is that otherwise the distribution is likely skewed True False Question 5 The reason that the distribution should not be skewed is that the normal distribution assumes that symmetrical distribtuion True False Question 6 Using ONLY the 68, 95, and 99.7...
1.) Unlike normal distributions, the standard normal distribution is purely theoretical. Select one: True False 2.)...
1.) Unlike normal distributions, the standard normal distribution is purely theoretical. Select one: True False 2.) Patricia's vet told her that the z-score for her dog's weight range is 1.75 for huskies. Which of the following is the best interpretation of this standardized score? The weight of huskies (measured in pounds) is approximately normally distributed with a mean of 45 lbs and a standard deviation of 3 lbs. Select one: a. Patricia's dog's weight is 1.75 times above the average...
Use the Normal Approximation to the Binomial Distribution to compute the probability of passing a true/false...
Use the Normal Approximation to the Binomial Distribution to compute the probability of passing a true/false test of 40 questions if the minimum passing grade is 60% and all responses are random guesses.
Assume for a moment that we have a population distribution that is negatively skewed. Which probability...
Assume for a moment that we have a population distribution that is negatively skewed. Which probability distribution becomes normal as the size of the sample increases? population distribution sample distribution sampling distribution None of the above The standard error of the mean refers to the standard deviation of the... normal distribution population sample sampling distribution None of the above Which type of error can be quantitatively measured: sampling error non-sampling error both neither The purpose of statistical inference is to...
In a negatively skewed distribution, the mean is always greater than the median. T or F
In a negatively skewed distribution, the mean is always greater than the median. T or F
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT