SAT, 21.07.2021 03:50 elijahchloesunshine

Assume that 87.2% of people are right-handed. If we select 10 people at random, find each of the following: a) mean number of right-handers in the group?
(Round to two decimal places as needed)
b) standard deviation of the number of right-handers in the group?
(Round to two decimal places as needed)
c) probability that they're not all right handed?
(Round to five decimal places as needed)
d) probability that there are no more than 8 right handers?
(Round to five decimal places as needed)
e) probability that less than 4 are right handers?
(Round to five decimal places as needed)
f) probability that the majority is right-handed?

Answers: 3

Show answers

Another question on SAT

SAT, 24.06.2019 09:00

An item not normally included in ansi recommendations, but recommended by other groups is: a) a syringe b) a blood pressure monitor c) a defibrillator d) all of the above

Answers: 1

Answer

SAT, 24.06.2019 20:30

Analyze the analogy and read the information below it. fish : fin : : bird : wing if you were reading this aloud, you would say, "fish is to fin as bird is to wing." this analogy uses parts of an animal to relate to the whole animal. much like how a fin a fish move, so does a wing a bird move. which analogy also uses parts to relate to the whole? sky : blue : : dirt : brown flower : petal : : tree : leaf car : road : : boat : water food : sandwich : : sport : softball

Answers: 1

Answer

SAT, 25.06.2019 22:00

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

Answers: 1

Answer

SAT, 27.06.2019 16:20

When do you think it’s best to take the psat (what grade year / when in the year)?

Answers: 1

Answer

You know the right answer?

Assume that 87.2% of people are right-handed. If we select 10 people at random, find each of the fol...

Questions