PLEASE HELP !!! A binomial event has n = 20 trials. The probability of success for each trial is 0.20. Let x be the number of successes of the event during the 20 trials.

What is the probability that x is at most 12? (1 point)

0.0000866
0.0001017
0.9999848
0.0000152

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Parks is wearing several rubber bracelets one third of the bracelets are tie-dye 1/6 are blue and 1/3 of the remainder are camouflage if parks wears 2 camouflage bracelets how many bracelets does he have on

43lbs of tomatos cost $387. how much would 41lbs cost