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Ket [755]
3 years ago
13

Find the value of this expression if x=1 and y=-5 x^2y/7

Mathematics
2 answers:
AlekseyPX3 years ago
8 0

Answer:

5/7

Step-by-step explanation:

GarryVolchara [31]3 years ago
6 0
0.1428

1^2(-5)/7
1^-10/7
1/7
= 0.1428



I think...
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22/5 / 6/5 = 22/5 x 5/6 = 110/30 = 3 and 2/3
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Suppose that Y takes on the values {0, 1, 2, 3}, each with probability 1/4. Take a random sample of 5 numbers from this distribu
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Answer:

The total number of samples that give this outcome is 5.

Step-by-step explanation:

Since Y takes values in {0,1,2,3}, For us to have that Y_1+Y_2+Y_3+Y_4+Y_5=1 implies that all of them are zero but one. The one that is non-zero necessarily is equal to 1. To calculate the number of samples that give this outcome is equivalent to counting the total number of ways in which we can pick the i-index such that Y_i=1. Note that in this case we can either choose Y1 to be 1, Y2 to be 1 and so on. So, the total number of samples that give this outcome is 5.

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Answer:

5

Step-by-step explanation:

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Step-by-step explanation:

that's the only one I remember

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