Mathematics, 20.03.2020 02:57 petunia6548
The following table shows the probability distribution for a discrete random variable. X 24 26 27 32 35 39 P(X) 0.16 0.09 0.18 0.12 0.24 0.21 What is the mean of this discrete random variable? That is, what is E(X), the expected value of X?
A. 31.47
B. 29.5
C. 32.63
D. 30.5
Answers: 2
Mathematics, 21.06.2019 18:00
Adriveway is 40 yards long about how many meters long is it
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Mathematics, 21.06.2019 21:30
You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?
Answers: 2
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
The following table shows the probability distribution for a discrete random variable. X 24 26 27 32...
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