Question

Data are drawn from a bell-shaped distribution with a mean of 140 and a standard deviation...

Data are drawn from a bell-shaped distribution with a mean of 140 and a standard deviation of 2.

a. Approximately what percentage of the observations fall between 134 and 146? (Round your answer to the nearest whole percent.)

Percentage of observations_______%



b. Approximately what percentage of the observations fall between 136 and 144? (Round your answer to the nearest whole percent.)

Percentage of observations_______%



c. Approximately what percentage of the observations are less than 138? (Round your answer to 1 decimal place.)

Percentage of observations_______%

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

Homework Answers

Answer #1

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
Data are drawn from a bell-shaped distribution with a mean of 30 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 30 and a standard deviation of 3. a. Approximately what percentage of the observations fall between 27 and 33? (Round your answer to the nearest whole percent.) b. Approximately what percentage of the observations fall between 24 and 36? (Round your answer to the nearest whole percent.) c. Approximately what percentage of the observations are less than 24? (Round your answer to 1 decimal place.)
Data are drawn from a bell-shaped distribution with a mean of 120 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 120 and a standard deviation of 3. a. Approximately what percentage of the observations fall between 111 and 129? (Round your answer to the nearest whole percent.)   Percentage of observations %    b. Approximately what percentage of the observations fall between 114 and 126? (Round your answer to the nearest whole percent.) Percentage of observations %    c. Approximately what percentage of the observations are less than 114? (Round...
Data are drawn from a bell-shaped distribution with a mean of 25 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 25 and a standard deviation of 3. a. Approximately what percentage of the observations fall between 22 and 28? (Round your answer to the nearest whole percent.) Percentage of observations? ________ b. Approximately what percentage of the observations fall between 19 and 31? (Round your answer to the nearest whole percent.) Percentage of observations? _________ c. Approximately what percentage of the observations are less than 19? (Round your answer...
Data are drawn from a bell-shaped distribution with a mean of 230 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 230 and a standard deviation of 5. There are 1,700 observations in the data set. a. Approximately what percentage of the observations are less than 240? (Round your answer to 1 decimal place.) b. Approximately how many observations are less than 240? (Round your answer to the nearest whole number.)
Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard...
Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 18. Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between 64 and 136​? ​(b) What percentage of people has an IQ score less than 64 or greater than 136​? ​(c) What percentage of people has an IQ score greater than 136?
The quantitative data set under consideration has roughly a​ bell-shaped distribution. Apply the empirical rule to...
The quantitative data set under consideration has roughly a​ bell-shaped distribution. Apply the empirical rule to answer the following question. A quantitative data set of size 80 has mean 50 and standard deviation 5. Approximately how many observations lie between 45 and 55​? Approximately nothing observations lie between 45 and 55. ​(Round to the nearest whole number as​ needed.)
A data set has a mean of 1500 and a standard deviation of 100. a. Using...
A data set has a mean of 1500 and a standard deviation of 100. a. Using Chebyshev's theorem, what percentage of the observations fall between 1300 and 1700? (Do not round intermediate calculations. Round your answer to the nearest whole percent.) b. Using Chebyshev’s theorem, what percentage of the observations fall between 1200 and 1800? (Do not round intermediate calculations. Round your answer to the nearest whole percent.)
Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard...
Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are less than 120? Please do not round your answer.
Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 19. Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between 43 and 157​? ​(b) What percentage of people has an IQ score less than 62 or greater than 138​? ​(c) What percentage of people has an IQ score greater than 138​?
Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 17. Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between 66 and 134​? ​(b) What percentage of people has an IQ score less than 66 or greater than 134​? ​(c) What percentage of people has an IQ score greater than 151​?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT