1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garri49 [273]
3 years ago
5

Clinical trial tests a method designed to increase the probability of conceiving a girl. in the study 506 babies were​ born, and

253 of them were girls. use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born. based on the​ result, does the method appear to be​ effective?
Mathematics
1 answer:
bekas [8.4K]3 years ago
5 0
No because the results where off
You might be interested in
Write an expression for the calculation subtract 10 divided into fifths from 20 divided in half?
storchak [24]
Subtract (10 divided into fifths) from (20 divided into half)
= (20 divided into half) - (10 divided into fifths)
= (20 / 2) - (10 / 5)

If you need to solve this expression expression:
= 10 - 2
= 8
I hope this helps you
5 0
3 years ago
On a piece of graph paper, plot the following points: A (0, 0), B (5, 0), and C (2, 4). These coordinates will be the vertices o
shtirl [24]

The triangle is an isosceles triangle and the four triangles are similar

<h3>How to determine the triangle type?</h3>

The coordinates are given as:

A (0, 0), B (5, 0), and C (2, 4).

Calculate the distance between the coordinates using:

d = \sqrt{(x_2 -x_1)^2 +(y_2 -y_1)^2

So, we have:

AB = \sqrt{(0 -5)^2 +(0-0)^2} =5

AC = \sqrt{(0 -2)^2 +(0-4)^2} =4.5

BC = \sqrt{(5 -2)^2 +(0-4)^2} =5

The above shows that two sides are congruent.

Hence, the triangle is an isosceles triangle

<h3>The midpoints of the sides</h3>

This is calculated using:

(x, y) = 0.5 * (x1 + x2, y1 + y2)

So, we have:

AB = 0.5 * (0 + 5, 0 + 0) = (2.5, 0)

AC = 0.5 * (0 + 2, 0 + 4) = (1, 2)

BC = 0.5 * (5 + 2, 0 + 4) = (3.5, 2)

From the attached graph, we can see that the triangles are similar

Read more about similar triangles at:

brainly.com/question/14285697

#SPJ1

6 0
2 years ago
What is the midpoint of a segment in the complex plane with endpoints points a 3-2 I and 17 - 8 I
SCORPION-xisa [38]

Answer:

(10,51)

Step-by-step explanation:

Take the average of 3 (x1) and 17(x2). This will be your new x-coordinate.

Then take the average of 21 (y1) and 81 (y2)

(3+17)/2 = 10

(21+81)/2 = 51

6 0
4 years ago
Please answer the image below
nikklg [1K]

Answer:

<h2>301.593</h2><h2 />

Step-by-step explanation:

surface area = 2πrh + 2πr²

where r = 4 km radius

           h = 8 km

<u>plugin values into the formula</u>

surface area = 2πrh + 2πr²

                     = 2π (4) 8  +  2π (4)²

                     = 201.062  +  100.531

                     = 301.593 km²

7 0
3 years ago
Find the midpoint of the segment having endpoints (0 ,1/8) and (-4/5 ,0)
kvasek [131]

Answer:

Mid point of the given end points = (\frac{-2}{5},\frac{1}{16} )

Step-by-step explanation:

Given the end points of the line segment are :

(0, \frac{1}{8}) & (\frac{-4}{5},0)

We will use the mid point formula when two points are: (x₁,y₁) & (x₂,y₂)

mid point = (\frac{x_{1} +x_{2} }{2},\frac{y_{1} +y_{2} }{2} )

now put the value of x₁ = 0

x₂ = \frac{-4}{5}

y₁ = \frac{1}{8}

y₂ = 0

mid point = (\frac{0-\frac{4}{5} }{2},\frac{\frac{1}{8}+0 }{2})

                = (\frac{-2}{5},\frac{1}{16} )

That's the final answer.

3 0
3 years ago
Other questions:
  • Write $<br> 55.26 in expanded form
    13·2 answers
  • Does dividing by -1 change an inequality
    5·1 answer
  • Life expectancy for calling birds is 2.4 years. The record for the oldest calling bird's life was 21 years old.
    5·2 answers
  • What is the product of 3x(x2 + 4)?
    13·1 answer
  • Please help, I don't understand
    13·2 answers
  • 4% of ___ days is 56days
    13·1 answer
  • The sum of a number and twice the same number is 15
    8·1 answer
  • Graph g(x) = - [x+3] -2​
    7·1 answer
  • Please solve :)<br> 2y &lt; y + 2
    7·1 answer
  • Algebra 1 time and cost
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!