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murzikaleks [220]
3 years ago
9

If a woman takes an early pregnancy test, she will either test positive, meaning that the test says she is pregnant, or test neg

ative, meaning that the test says she is not pregnant. Suppose that if a woman really is pregnant, there is a 98% chance that she will test positive. Also, suppose that if a woman really is not pregnant, there is a 99% chance that she will test negative. Assume that 1000 women are to be pregnancy tested and that exactly 100 of them are pregnant. If a randomly chosen woman from this group tests positive for pregnancy, then what is the probability that she really is pregnant?
Mathematics
1 answer:
k0ka [10]3 years ago
3 0

Answer:

0.0098

Step-by-step explanation:

Probability of being pregnant:100/1000

=1/10.

98% chance:=98/100 ×1/10

=98/1000

Therefore the probability that she really is pregnant is: 0.098

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6⋅7-3^2⋅9+4^3 what is the value?
zalisa [80]

\textsf{Hey there!}

\mathsf{Equation: 6 \times 7- 3^2 \times9+4^3}

\mathsf{3^2 = 3\times3=9}

\mathsf{4^3= 4\times4\times4=16\times4 = 64}

\mathsf{6\times7 = 42}

\mathsf{9\times9= 81}

\mathsf{New\ equation: 42 - 81 + 64}

\mathsf{42 -81= -39}

\textsf{New equation: -39 + 64}

\mathsf{SOLVE\ ABOVE\ \uparrow\ \& you\ will\ have\ your\ answer\ to\ this\ problem}

\mathsf{-39 + 64 = 25}

\boxed{\textsf{Thus, your answer is: \boxed{\mathsf{\bf{25}}}}}\checkmark

\textsf{Good luck on your assignment and enjoy day!}

~\frak{LoveYourselfFirst:)}

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3 years ago
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What is the sum of 1/3 + 5 3/4 as a mixed number in simplest form
mart [117]

6 1/12 would be the answer

Rewriting our equation with parts separated

1/3+5+3/4

Solving the fraction parts

1/3+3/4=?

Find the LCD of 1/3 and 3/4 and rewrite to solve with the equivalent fractions.

LCD = 12

4/12+9/12=13/12

Simplifying the fraction part, 13/12,

13/12=11/12

Combining the whole and fraction parts

5+1+1/12=6 1/12

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3 years ago
What is the height, in yards, of a cylindrical water tank that holds 1,884 cubic yards of water and has a diameter of 120 feet?
mafiozo [28]

Answer:

The height of the tank is 0.5 yards.

Step-by-step explanation:

To determine what is the height, in yards, of a cylindrical water tank that holds 1,884 cubic yards of water and has a diameter of 120 feet, knowing that the volume of a cylinder is equal to pi multiplied by the radius squared, multiplied by the height, the following calculation must be done:

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R = Diameter / 2

R = 120/2 = 60

3.14 x 60 ^ 2 x H = 1,884

3.14 x 3,600 x H = 1,884

3.14 x 1,200 x H = 1,884

3.768 x H = 1.884

H = 1,884 / 3,768

H = 0.5

Therefore, the height of the tank is 0.5 yards.

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3 years ago
Which graph contains the points of intersection
timama [110]

Answer:

graph A

Step-by-step explanation:

if you use the substitution method is graph A

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