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yaroslaw [1]
3 years ago
7

BRCA1 is a gene that has been linked to breast cancer. Researches at Stanford University wanted to estimate what proportion of w

omen with a family history of breast cancer show a BRCA1 mutation. In 2014, they used DNA analysis to search for BRCA mutations in 173 women with family histories of breast cancer. Of the 173, they found that 29 had BRCA1 mutations. Calculate the Point Estimate. Give your answer to 3 decimal places.
Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0

Answer:

The point estimate for the proportion of women with BRCA1 mutation is 0.168

Step-by-step explanation:

The point estimate for the proportion of women with BRCA1 mutation is the number of women with this mutation divided by the size of the sample.

Of the 173, they found that 29 had BRCA1 mutations.

29/173 = 0.168

The point estimate for the proportion of women with BRCA1 mutation is 0.168

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A video company randomly selected 100 of its subscribers and asked them how many hours of shows they watch per week. Of those su
Alik [6]

Answer:

1,135 people

For every 100 people only 45 people watch more than 10 hours per week. So, the ratio is (45/100), since the company has 2500 we want to know what (x/2500) is. The total ratio becomes (1,135/2,500).

The number is found by dividing 2500 by 100 to receive the common factor of 25. You multiply 45 by 25 to receive your total answer.

Step-by-step explanation:

For every 100 people only 45 people watch more than 10 hours per week. So, the ratio is (45/100), since the company has 2500 we want to know what (x/2500) is. The total ratio becomes (1,135/2,500).

The number is found by dividing 2500 by 100 to receive the common factor of 25. You multiply 45 by 25 to receive your total answer.

8 0
3 years ago
I have no idea what to do pls help ​
kati45 [8]

Answer:

101 = first number

115= second number

101+115=116

101 and 115

yes they are odd because you can not add two nubers to make 101 or 115

yes. they do add up to 116.

Step-by-step explanation: hope this helped

7 0
2 years ago
HELP OMG HELP IM SO STUCK
tangare [24]

Answer: -1

Step-by-step explanation:

1 - (-3) - 5 = 1 + 3 - 5

Thats because subtracting by a negative number is the same as adding the negative number's absolute value (Distance away from zero).

(1 + 3) - 5 = -1

PEMDAS Addition and Subtraction from left to right.

7 0
3 years ago
$12 for 6 bagels; $9 for 24 bagels.
BabaBlast [244]

Answer:

What is the question that you are asking?

Step-by-step explanation:

3 0
2 years ago
- 16 = -4(-5+ i)<br> Please help i can’t fail this test
Simora [160]

<em>Answer: i=9</em>

<em />

<em>Step-by-step explanation:</em>

<em>-16=-4(-5+i)</em>

<em>-16=20-4i</em>

<em>-20 -20</em>

<em>-36=-4i</em>

<em>Divide by -4 </em>

<em>i=9</em>

7 0
2 years ago
Read 2 more answers
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