Data are drawn from a relatively symmetric and bell-shaped distribution with a mean of 110 and a standard deviation of 4. What percentage of the observations are less than 106? Thank you.
I'm having difficulties understanding this, I got this all wrong on my test and would like to know how to solve it. Any help is greatly appreciated! Thanks.
The weight of an organ in adult males has a bell-shaped distribution with a mean of 340 grams and a standard deviation of 20 grams. Use...
...calculate z-scores? I do not know the function.. Is it something like f(x) = ln(x) or something --> i know thats not it just providing a template for the answer i have been searching for. From there i need to find the definite integral from - infinite; to -2, for x, i know this should be .05...
...200 and a standard deviation of 10?
The scores on a certain test have a bell-shaped distribution with a mean of 200 and a standard deviation of 10. Use the Empirical Rule to find the percentage of people with scores on the test between 190 and 210
distribution, with a mean of 55? A supermarket has determined that daily demand for eggs has a bell-shaped distribution, with a mean of 55 cartons and a standard deviation of six cartons. If the supermarket begins each morning with a stock of 61 cartons of eggs, approximately what percentage of...
...distribution with a mean of 100 and a standa? Scores on an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 16.
Which one of the statements below is incorrect?
(1) Using the empirical rule, we can say that approximately 68% of the values lie between 84...