The digits 0, 1,2,3, 4, 5, 6,7, 8, and 9 are randomly selected Sor applications
ID: 3324258 • Letter: T
Question
The digits 0, 1,2,3, 4, 5, 6,7, 8, and 9 are randomly selected Sor applications including the selection of lottery numbers and the selection of telephone numbers to be called as part of a survey. In the following tables, the one on the left summarizes actual results froms 100 randomly selected digits, and the one on the right summarizes the probabilities of the different digits Digit Frequency 12 10 10 0.1 0.1 o.1 0.1 0.1 0.1 0.1 a) What is the table at the left called? b) What is the table at the right called? c) Use the table on the left to calculate the mean 2 pts.) 2 pts.) (3 pts.) (1 pt.) a. Is it a statistic or a parameter? 3 prs.) d) Use the table on the right to calculate the mean. (1 pt.) If you were to randomly generate 1000 such digits, would you expect the mean of these 1000 digits to be closer to the result from part (e ) or part (d )? To earn eredit for this question, you must explain why a Is it a statistic or a parameter? (3 pts.) e)Explanation / Answer
e) Since all digits have equal chance of getting selected, probability of all is expected to be same
While observed values might be different but expected is 0.1 per digit
As we are selecting digits randomly, each digit has a 1/10 = 0.1 chance of getting selected
So,
d) part would be better