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nlexa [21]
3 years ago
8

A drug trial is testing the effectiveness of two drugs. If 80 patients are given Drug A, 10 patients are given Drug B, and 20 pa

tients are given a placebo, what is the probability that a patient will NOT be given a placebo?
Mathematics
1 answer:
KiRa [710]3 years ago
4 0

Answer:

The answer is 9/11.

Step-by-step explanation:

To find the answer you'd first add up how many patients you have:

80+10+20 = 110.

Now find out that how many patients are taking a real drug, which is represented by 80+10 = 90.

So, the probability of a patient NOT getting a placebo is 90/110

Simplified would be 9/11

Thus the answer is 9/11....

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8 0
3 years ago
URGENT <br>Perform the indicated operation and simplify the result.
yan [13]

Answer:

The answer to your question is:  (2a - 1) / 4

Step-by-step explanation:

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8 0
3 years ago
5 1/4 + 2 3/4 = what is the summ
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5 + 2 = 7
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7 0
3 years ago
Read 2 more answers
What is the ratio of 30 divided by 4:2
klasskru [66]
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30 / 2 = 15
7 0
3 years ago
Determine if the statement is true or false:
erma4kov [3.2K]

Answer:

Step-by-step explanation:

given are four statements and we have to find whether true or false.

.1 If two matrices are equivalent, then one can be transformed into the other with a sequence of elementary row operations.

True  

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True in whatever way we do the reduced form would be equivalent matrices

3.Different sequences of row operations can lead to different reduced echelon forms for the same matrix.

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8 0
3 years ago
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