1.- A Roads inspector is at a strategic point on the outskirts where, according to statistics, an average of 10 cars per hour drives at an excessive speed.
Distribution = ____________________
a) Find the probability that in one hour exactly 12 cars will
drive at excessive speed.
b) What is the probability of at least 2 cars speeding in half an
hour.
2.- It is known that 20% of the students on campus are smokers. If
a total of 10 students are interviewed, to find out their situation
regarding tobacco, determine the probability that at least one of
the interviewees smokes.
Distribution = ____________________
3.- A box with 15 Led bulbs for domestic lighting was received. We
have just been informed that one of the supplier's employees mixed
light bulbs from the original German supplier, with 5 light bulbs
(a copy of the first ones) from a Chinese supplier, which by
experience is not known to have the same duration or warranty. 3
spotlights will be installed in a boardroom. Find:
Distribution = ____________________
a) The probability that all three are from the German
supplier
b) The probability that at least two of Chinese origin will be
installed
1.- A Roads inspector is at a strategic point on the outskirts where, according to statistics,...
1. A hypothetical investigation on rider satisfaction with a particular public transit system serving commuting residents of British California (BC) and Prince Edward’s County (PEC) offers some interesting findings. The proportion of commuters from BC that indicated low satisfaction with the transit system’s service in the 2018 calendar year was 65 percent, and the proportion from PEC was 70 percent. These point estimates were based on samples of 5,380 BC commuters and 6,810 PEC commuters, whose system-using commuters number in...