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Delvig [45]
2 years ago
12

Please help with number 6 and 7. Real answers please!! Help me soon as posible.

Mathematics
2 answers:
Ipatiy [6.2K]2 years ago
7 0

Answer:

b

Step-by-step explanation:

jehdgdhdeoejejrbdnsnskd

kirza4 [7]2 years ago
3 0

Answer:

I don't know 6

number 7 is D

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Probabilty he gets heads= I thing it is 1/2
Probabilty he gets a number greater than 4= For sure it's 2/6
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At which points is this graph discontinuous? List your answers in increasing order.
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The graph is discont. at x = -2 and again at x = 1.

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Read 2 more answers
2x2-3x-2=x+4 select all the solutions
Papessa [141]
Solve for x over the real numbers:2 x^2 - 3 x - 2 = x + 4
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5 0
3 years ago
Simplify<br> 10+6/2+3<br> i don’t understand
labwork [276]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
During an experiment, some water was removed from each of the 6 water tanks. If the standard deviation of the volumes of water i
Julli [10]

Answer:

First statement is correct.

Step-by-step explanation:

If we add or subtract a constant to each term in a set:  Mean will increase or decrease by the same constant.  Standard Deviation will not change.

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For example:

Standard Deviation of a set: {1,1,4} will be the same as that of {5,5,8} as second set is obtained by adding 4 to each term of the first set.

That's because Standard Deviation shows how much variation there is from the mean. And when adding or subtracting a constant to each term we are shifting the mean of the set by this constant (mean will increase or decrease by the same constant) but the variation from the mean remains the same as all terms are also shifted by the same constant.

So according to this rule, statement (1) is sufficient to get new Standard Deviation, it'll be 30% less than the old.. As for statement (2) it's clearly insufficient as knowing mean gives us no help in getting new Standard Deviation.

6 0
3 years ago
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