Let me ask! 1) What is an estimated result? Let X1, X2, ..., Xn be a random sample with no sample size n (n > 30) from the possible sum with F(X) = 4 and a bad method D(X) =. X + X + X
and X are unparticipated estimators of H? b) Which estimate in a) is the result of the estimate.
2) Build the estimated interval for the population mean.

step-by-step explanation:

i dont get

idk this answer sorry cant on this one.

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.