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Neko [114]
4 years ago
5

Swim rings are on sale at Sam's

Mathematics
2 answers:
pshichka [43]4 years ago
8 0

Answer:

Step-by-step explanation:

3.60

butalik [34]4 years ago
4 0

Answer:

help me................

Step-by-step explanation:

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Birth certificates show that approximately 9% of all births in the United States are to teen mothers (ages 15 to 19), 24% to you
Ira Lisetskai [31]

Answer:

The probability that a birth was to a teen mother if we know that the pregnancy was unintended is 0.1942.

Step-by-step explanation:

Denote the events as follows:

<em>T</em> = birth was to a teen mother

<em>Y</em> = birth was to a young-adult mother

<em>A</em> = birth was to an adult mother

<em>U</em> = a birth was unintended

<em>I</em> = a birth was intended.

<u>Given:</u>

P (T) = 0.09

P (Y) = 0.24

P (A) = 0.67

P (I | T) = 0.23

P (U | T) = 0.77

P (I | Y) = 0.50

P (U | Y) = 1 - P (I | Y) = 0.50

P (I | A) = 0.75

P (U | A) = 1 - P (I | A) = 0.75 = 0.25

Consider the tree diagram below.

According to the Bayes' theorem,

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

Using the Bayes' theorem compute the probability that a birth was to a teen mother if we know that the pregnancy was unintended as follows:

P(T|U)=\frac{P(U|T)P(T)}{P(U|T)P(T)+P(U|Y)P(Y)+P(U|A)P(A)} \\=\frac{(0.77\times0.09)}{(0.77\times0.09)+(0.50\times0.24)+(0.25\times0.67)} \\=0.19423\\\approx0.1942

The probability that a birth was to a teen mother if we know that the pregnancy was unintended is 0.1942.

6 0
4 years ago
Write each fraction in simplest form 18 divided by 9
defon

well it would be 18/9 and that would simplify to 2 because if u divide both by 9 u get 2/1 which is 2

6 0
3 years ago
Read 2 more answers
Have students write the answer to the essential question and draw examples to explain their answer.
hram777 [196]

What is the essential question? We need more details please :)

7 0
3 years ago
Read 2 more answers
Which inequality is graphed on the coordinate plane?
ruslelena [56]

Answer:

A: y < -2x - 1

Step-by-step explanation:

First, to figure out which part of the graph to be looking at, you will look at the shaded region as the solution area.

So, the solution area is to the left of the line. Said line is a dotted line which means that the points on the line can not be a solution.

If the points on the line can not be a solution then it eliminates answer choices C and D because y can not equal the other side of the inequality.

Now, we will bring the shaded region back into focus to find out if y is greater than or less than the other side. The shaded area is "below" the line so it is less than -2x - 1.

To ensure this is correct, plug two points into the inequality we just chose, one from the shaded region and one not, just to make sure the answer is correct.

I picked (-3,4) to test. So plug them into the inequality to get:

4 < -2 (-3) - 1

So 4 < 6 - 1 which is correct.

Then from the other side of the line I picked (5,2)

2 < -2 (5) - 1

2 < -10 - 1

2 < -11 is not true so the inequality that we found was correct.

8 0
3 years ago
WHAT IS 5+5+5+5?WHAT IS 5+5+5+5?
vfiekz [6]

Answer:

Step-by-step explanation:

20?

5 0
3 years ago
Read 2 more answers
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