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astra-53 [7]
3 years ago
8

Subtract express each diffrence in simplest form : 2 - 1/3-9/10 and 4-5/6- 3/8

Mathematics
1 answer:
ivolga24 [154]3 years ago
3 0
The first one is 23/30  and the second one is 2 19/24
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A certain disease occurs most frequently among older women. Of all age groups, women in their 60s have the highest rate of breas
Law Incorporation [45]

Answer:

The probability that a woman in her 60s has breast cancer given that she gets a positive mammogram is 0.0276.

Step-by-step explanation:

Let a set be events that have occurred be denoted as:

S = {A₁, A₂, A₃,..., Aₙ}

The Bayes' theorem states that the conditional probability of an event, say <em>A</em>ₙ given that another event, say <em>X</em> has already occurred is given by:

P(A_{n}|X)=\frac{P(X|A_{n})P(A_{n})}{\sum\limits^{n}_{i=1}{P(X|A_{i})P(A_{i})}}

The disease Breast cancer is being studied among women of age 60s.

Denote the events as follows:

<em>B</em> = a women in their 60s has breast cancer

+ = the mammograms detects the breast cancer

The information provided is:

P(B) = 0.0312\\P(+|B)=0.81\\P(+|B^{c})=0.92

Compute the value of P (B|+) using the Bayes' theorem as follows:

P(B|+)=\frac{P(+|B)P(B)}{P(+|B)P(B)+P(+|B^{c})P(B^{c})}

            =\frac{(0.81\times 0.0312)}{(0.81\times 0.0312)+(0.92\times (1-0.0312)}\\

            =\frac{0.025272}{0.025272+0.891296}

            =0.02757\\\approx0.0276

Thus, the probability that a woman in her 60s has breast cancer given that she gets a positive mammogram is 0.0276.

4 0
3 years ago
Read 2 more answers
Ronald started solving the equation −2(2x−4)+3=6x+1.<br><br> Which is a correct next step?
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Answer:

distribute bud

Step-by-step explanation:

distribute throught the parethesis first

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3 years ago
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What is the slope and y intercept of the points (4,8) and (20,24)​
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The slope is 1 and the y intercept is 0
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12) reflection across y = x
densk [106]
I’m pretty sure it’s c
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3 years ago
Solve and model 7/10-3/10
sergij07 [2.7K]
Hello,

\frac{7}{10} -  \frac{3}{10} = 2/5 

Solution.

<span>\frac{7}{10} - \frac{3}{10}= The denominators are the same so you subtract the numerator. Your answer should be </span>\frac{4}{10}  simplified your answer is \frac{2}{5}.

Have A Good Day!
7 0
4 years ago
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