Question

A population is normally distributed with mean ? and standard deviation ?. Find the percentage of...

A population is normally distributed with mean ? and standard deviation ?. Find the percentage of values which are between ? − 2? and ? + 2?.

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

Homework Answers

Answer #1

Let ,

Now ,

; From standard normal distribution table

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
A variable is normally distributed with mean 11 and standard deviation 2. a. Find the percentage...
A variable is normally distributed with mean 11 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 8 and 16. b. Find the percentage of all possible values of the variable that are at least 6. c. Find the percentage of all possible values of the variable that are at most 9.
A variable is normally distributed with mean 11 and standard deviation 2. a. Find the percentage...
A variable is normally distributed with mean 11 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 8 and 16. b. Find the percentage of all possible values of the variable that are at least 6. c. Find the percentage of all possible values of the variable that are at most 9.
A variable is normally distributed with mean 10 and standard deviation 2. a. Find the percentage...
A variable is normally distributed with mean 10 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 9 and 12. b. Find the percentage of all possible values of the variable that exceed 5. c. Find the percentage of all possible values of the variable that are less than 8.
A variable is normally distributed with mean 9 and standard deviation 2. a. Find the percentage...
A variable is normally distributed with mean 9 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 4 and 12. b. Find the percentage of all possible values of the variable that exceed 7. c. Find the percentage of all possible values of the variable that are less than 8.
A variable is normally distributed with mean 13 and standard deviation 4. a. Find the percentage...
A variable is normally distributed with mean 13 and standard deviation 4. a. Find the percentage of all possible values of the variable that lie between 8and 17. b. Find the percentage of all possible values of the variable that are at least 9 ? % c. Find the percentage of all possible values of the variable that are at most 7 ? %.
A variable is normally distributed with mean 68 and standard deviation 10. Find the percentage of...
A variable is normally distributed with mean 68 and standard deviation 10. Find the percentage of all possible values of the variable that: a. Lie between 73 and 80 b. Are atleast 75 c. Are at most 90
A variable is normally distributed with mean 16 and and standard deviation 2. a. Find the...
A variable is normally distributed with mean 16 and and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 11 and 17. b. exceed 15. c less than 12.
a.) A sample set is normally distributed with a mean of 2.8 and a standard deviation...
a.) A sample set is normally distributed with a mean of 2.8 and a standard deviation of 0.7. Approximately, what percentage of the sample is between the values of 2.1 and 3.5? b.) A sample set is normally distributed with a mean of 66 and a standard deviation of 8. Find a z-score corresponding to a given value of 82.
1. A population is normally distributed with mean 19.1 and standard deviation 4.4. Find the probability...
1. A population is normally distributed with mean 19.1 and standard deviation 4.4. Find the probability that a sample of 9 values taken from this population will have a mean less than 22. *Note: all z-scores must be rounded to the nearest hundredth. 2. A particular fruit's weights are normally distributed, with a mean of 377 grams and a standard deviation of 11 grams. If you pick 2 fruit at random, what is the probability that their mean weight will...
A normally distributed population has a mean of 70 and a standard deviation of 5. a....
A normally distributed population has a mean of 70 and a standard deviation of 5. a. Approximately 95% of the data will be within what two values? b. What percent of the data will be between 65 and 75?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT