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
boyakko [2]
3 years ago
5

In a certain​ country, the true probability of a baby being a boy is 0.524. Among the next five randomly selected births in the​

country, what is the probability that at least one of them is a girl​?
Mathematics
1 answer:
KonstantinChe [14]3 years ago
7 0

Answer:

The probability that at least one of them is a girl is 0.96049.

Step-by-step explanation:

In a certain​ country, the true probability of a baby being a boy is 0.524.

This is a binomial problem.

p(boy) = 0.524

n = 5

p(girl) = 1-0.524=0.476

P(at least one girl) = 1 - p(5 boys) =1-0.524^5 = 0.96049

Hence, the probability is 0.96049.

You might be interested in
In trapezoid ABCD, points M and N are arbitrary points on bases AB and CD respectively. Find the area of the trapezoid, if area
mel-nik [20]

Remark

This is quite a nice little problem. It takes a minute or three to figure out the answer, and when you do, you will be certain that you have been tricked. It is a little like the egg of Columbus.

Solution

The Base of Triangle ABN is AB

The Base of Triangle CDM is CD

The height of both given triangles is h. That is the distance between the two parallel lines.

Area ABN = 1/2*AB * h = 23 cm^2

Area CDM = 1/2*CD * h = 18 cm^2

Now the Area of the trapezoid is

Area_Trapezoid = 1/2 * h (AB + CD)     Using the distributive property Remove the brackets.

Area_Trapezoid = 1/2*AB*h + 1/2*CD*h Did you notice something? Those terms are just the area of the triangles (written above.)

Area Trapezoid = 23 + 18 = 41 cm^2 <<<< Answer

6 0
3 years ago
2x + 3(x + 5) = 5(x – 3) why is it a no solution answer <br><br><br> 50 POINT!!!!!!!!!!!
Nesterboy [21]
2x +3x + 25 = 5x - 15
5x + 25 = 5x - 15
5x - 5x = -15 - 25
0 ≠ -35
6 0
2 years ago
Read 2 more answers
Which of the following is true of the discriminant for the graph below
aniked [119]

Answer:

Step-by-step explanation:

The discriminant is used to determine the number and nature of the zeros of a quadratic. If the discriminant is positive and a perfect square, there are 2 rational zeros; if the discriminant is positive and not a perfect square, there are 2 rational complex zeros; if the discriminant is 0, there is 1 rational root; if the discriminant is negative, there are no real roots.

The roots/solutions/zeros of a quadratic are where the graph goes through the x axis. Those are the real zeros, even if they don't fall exactly on a number like 1 or 2 or 3; they can fall on 1.32, 4.35, etc. They are still real. If the graph doesn't go through the x-axis at all, the zeros are imaginary because the discriminant was negative and you can't take the square root of a negative number. As you can see on our graph, the parabola never goes through the x-axis. Therefore, the zeros are imaginary because the discriminant was negative. Choice C.  Get familiar with your discriminants and the nature of quadratic solutions. Your life will be much easier!

4 0
2 years ago
Which expression is equivalent to 15x^-3z^5/3x^7z^-5 please answer spr fast
Law Incorporation [45]

Answer:

5x^{-10}z^{10

Step-by-step explanation:

Given

\frac{15x^{-3}z^5}{3x^7z^{-5}}

Required

Evaluate

\frac{15x^{-3}z^5}{3x^7z^{-5}}

Start by dividing 15 by 3

\frac{5x^{-3}z^5}{x^7z^{-5}}

Apply the following law of indices on indices x and z

\frac{a^m}{a^n} = a^{m-n

So, the expression becomes:

5x^{-3-7}z^{5-(-5)

5x^{-3-7}z^{5+5

5x^{-10}z^{10

3 0
2 years ago
Read 2 more answers
Two secant segments intersect outside a circle as shown. What is the value of x?
torisob [31]
Using the intersecting secants theorem, QS*QR=QP*QM
3*13=2*(x+2)
39=2x+4
2x=35
x=17.5
8 0
3 years ago
Other questions:
  • 0.667 in simple fraction​
    5·1 answer
  • A VHS tape holds at most 360 minutes. A tape already has a 120 minute movie on it. How many 30 minute sitcoms can be recorded on
    6·1 answer
  • A political action committee is interested in finding out what proportion of voters will
    5·1 answer
  • Melissa purchased 39.46 in groceries
    5·1 answer
  • Identify the pair of angles shown in the figure. answers A. LINEAR PAIR B. COMPLEMENTARY C. CONGRUENT D. VERTICAL
    13·2 answers
  • Solve the system of equations.
    12·1 answer
  • Which expression is equivalent
    8·1 answer
  • I really need help plz
    12·1 answer
  • 10 * 2020 * 30httkjjj​
    13·1 answer
  • Find the area. What type of triangle is triangle ABC?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!