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Vadim26 [7]
2 years ago
6

Solve for r.

Mathematics
2 answers:
STALIN [3.7K]2 years ago
5 0

Answer:

r = 12

Step-by-step explanation:

23 = r + 11

23 - 11 = r

r = 12

inessss [21]2 years ago
3 0
Subtract 11 from both sides
r=12
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Step-by-step explanation:

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Given that X <span>be the number of subjects who test positive for the disease out of the 30 healthy subjects used for the test.

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Part A:

</span><span>The probability that all 30 subjects will appropriately test as not being infected, that is the probability that none of the healthy subjects will test positive is given by:

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Part B:

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<span>
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</span>\sigma=\sqrt{np(1-p)} \\ \\ =\sqrt{30(0.02)(1-0.02)} \\ \\ =\sqrt{30(0.02)(0.98)}=\sqrt{0.588} \\  \\ =0.7668
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Part C:

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