ata with 250 observations are drawn from a bell-shaped distribution with a mean of 60 and...
Data with 650 observations are drawn from a bell-shaped distribution with a mean of 90 and a standard deviation of 6. Approximately how many observations are more than 102? (Round your answer to the nearest whole number.)
Data are drawn from a bell-shaped distribution with a mean of 130 and a standard deviation of 5. There are 1,500 observations in the data set. a. Approximately what percentage of the observations are less than 140? (Round your answer to 1 decimal place.) Percentage of observations b. Approximately how many observations are less than 140? (Round your answer to the nearest whole number.) Number of observations
Data are drawn from a bell-shaped distribution with a mean of 95 and a standard deviation of 6. a. Approximately what percentage of the observations fall between 83 and 107? (Round your answer to the nearest whole percent.) b. Approximately what percentage of the observations fall between 77 and 113? (Round your answer to the nearest whole percent.) c. Approximately what percentage of the observations are less than 83? (Round your answer to 1 decimal place.)
Data are drawn from a bell-shaped distribution with a mean of 80 and a standard deviation of 4 a. Approximately what percentage of the observations fall between 72 and 88? (Round your answer to the nearest whole percent.) Percentage of observations b. Approximately what percentage of the observations fall between 68 and 92? (Round your answer to the nearest whole percent.) Percentage of observations c. Approximately what percentage of the observations are less than 76? (Round your answer to 1...
Data are drawn from a bell-shaped distribution with a mean of 75 and a standard deviation of 5. Using Chebyshev's theorem, Approximately what percentage of the observations are less than 65?
Data are drawn from a bell-shaped distribution with a mean of 100 and a standard deviation of 4. a) Approximately why percentage of the observations fall between 92 and 108? - b) Approximately what percentage of the observations fall between 88 and 112? - c) Approximately what percentage of the observations are less than 96? - I’m having a lot of trouble with these, please explain each problem and show work.
3.3.128 Question Help 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 60 has mean 30 and standard deviation 3. Approximately how many observations lie between 21 and 397 Approximately observations lle between 21 and 39 (Round to the nearest whole number as needed.)
Suppose that IQ scores have a bell-shaped distribution with a mean of 101 and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are no more than 125? Please do not round your answer.
A set of 490 examination scores exhibiting a bell-shaped relative frequency distribution has a mean of y = 75 and a standard deviation of s = 8. Approximately how many of the scores would you expect to fall in the interval from 67 to 83? (Round your answer to the nearest whole number.) scores Approximately how many of the scores would you expect to fall in the interval from 59 to 91? (Round your answer to the nearest whole number.)...
Suppose that IQ scores have a bell-shaped distribution with a mean of 9696 and a standard deviation of 1414. Using the empirical rule, what percentage of IQ scores are no more than 6868? Please do not round your answer.