subject
Mathematics, 14.03.2020 01:26 naocarolina6

Some probability distributions. Here is a probability distribution for a random variable X: Value of X: 2, 3, 4 Probability: 0.2, 0.4, 0.4 (a) Find the mean and standard deviation for this distribution. (b) Construct a different probability distribution with the same possible values, the same mean, and a larger standard deviation. Show your work and report the standard deviation of your new distribution. (c) Construct a different probability distribution with the same possible values, the same mean, and a smaller standard deviation. Show your work and report the standard deviation of your new distribution. c

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 20.06.2019 18:04, eloyjrcruz101
Choose all answers that apply: a) ab and a’b’ are one the same line. b) quadrilaterals abcd and a’ b’ c’ d’ have the same perimeters. c) points a and a’ have the same coordinates. d) none of the above
Answers: 3
image
Mathematics, 20.06.2019 18:04, Uc34758
Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?
Answers: 2
image
Mathematics, 21.06.2019 15:00, morant55
Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.
Answers: 3
image
Mathematics, 21.06.2019 16:10, GgRed
Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.
Answers: 1
You know the right answer?
Some probability distributions. Here is a probability distribution for a random variable X: Value of...

Questions in other subjects:

Konu
Mathematics, 18.03.2021 22:10
Konu
Spanish, 18.03.2021 22:10
Konu
Mathematics, 18.03.2021 22:10