a couple decided to have 4 children. (a) what is the probability that they will have at least one girl? (b) what is the probability that all the children will be of the same gender?

Answers

Answer 1

(a) The probability of having at least one girl is 1 - 0.0625 = 0.9375 or 93.75%.

(b) The probability that all the children will be of the same gender is 0.0625 + 0.0625 = 0.125 or 12.5%.

The probability of having at least one girl can be calculated by finding the probability of having no girls and subtracting it from 1.

Assuming that the probability of having a boy or a girl is equal (0.5), the probability of having no girls is (0.5)^4 = 0.0625.

Therefore, the probability of having at least one girl is 1 - 0.0625 = 0.9375 or 93.75%.

(b) The probability that all the children will be of the same gender is 0.0625 + 0.0625 = 0.125 or 12.5%.

The probability that all the children will be of the same gender can be calculated by finding the probability of having all boys and adding it to the probability of having all girls.

The probability of having all boys is (0.5)^4 = 0.0625, and the probability of having all girls is also 0.0625.

Therefore, the probability that all the children will be of the same gender is 0.0625 + 0.0625 = 0.125 or 12.5%.

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Related Questions

what is 1.4504 rounded to the neareast cent

Answers

Answer:

$1.45

When writing about money, you use the two places after the decimal. In the third place, the number is 0 which rounds down.

The total cost c for p pounds of ham ig each pound costs $3.18

Answers

Answer:

Since 1 pound of copper costs 3.18, C = 3.18p

Subtract.
(6x + 5) - (x+3)
O A. 5x + 2
B. 5x shig
C. 6x+8
0 D. 6x + 2

Answers

5x+2 A.
First remove the parentheses 6x+5-x-3
Collect like terms. (6x-x)+(5-3)
Simplify to get 5x+2
Hope that helps!!

Help please !!!! thnk you!!!!

Answers

x = 2

The line of symmetry is the line at which the parabola is the same on each side. With the line x = 2 , each side of the parabola is the same.

I am not a professional, simply using prior knowledge!

Note- It would mean the world to me if you could mark me brainliest!

5. Which of the following ways would NOT be a correct way to name this angle?





A. СВА
B. CAB
C. ABC
E. B

Answers

Answer:

B

Step-by-step explanation:

HElp please thanks I’ll give Brainly

Answers

Answer:

3

Step-by-step explanation:

its 3 just trust me

when subtracting a negative, you add so it can be rewritten as -3 + 6
the answer is 3

Tyrone has 16 model airplanes on his shelf. He has 4 times as many model airplanes as model trains. How many model trains does Tyrone have?


Write multiplication and division equations to model and solve the problem. Use m for the unknown

Answers

Step-by-step explanation:

4m =16

divide both sides by 4

m = 4

he has 4 model trains

On a map ,the distance between two towns is 2.6 cm .The scale of the map is 1 cm :50 km. What is the actual distance between the two towns ?
A-100km
B-70km
C-130km
D-150km

And how

Answers

Answer:

C-130km

Step-by-step explanation:

50 km = 5 000 000 cm

=> Actual distance between 2 towns = 2.6 x 5 000 000 = 13 000 000 cm = 130 km

=> C-130 km will be the correct ans.

Answer:

C - 130

Step-by-step explanation:

We have two towns that have a distance of 2.6cm, at the same time we know the scale of the map is 1cm : 50km and the question being asked is the actual distance between the two towns.

What we have to do to find the answer is multiply 2.6 by 50, since we know that one centimeter is equal to 50 kilometers on the scale, this is what we must do.

50 * 2.6

Therefore, the distance between the two towns is 130 kilometers.

Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Together they charged a total of $2150. What was the rate charged per hour by each mechanic if the sum of the two rates was $145 per hour?

Answers

Answer:

Step-by-step explanation: 20x+15(160-x)=2625

20x+2400-15x=2625

5x=225

x=45

160-x=115

rate of first mechanic= $45/hr

rate of second mechanic=$115/hr

115 in hour I believe hope this helps!

Which quotient is greater than 3?

Question 4 options:

42 ÷ 19


40 ÷ 18


38 ÷ 14


36 ÷ 11

Answers

Answer:

36/11

Step-by-step explanation:

Answer:

36/15

Step-by-step explanation:

Identify the factors of x^2 − 4x − 12. (4 points)


a(x + 4)(x − 3)


b(x − 4)(x + 3)


c(x − 2)(x + 6)


d(x + 2)(x − 6)

Answers

Answer:

(x-6)(x+2)

Step-by-step explanation:

The temperature in Minneapolis changed from -7 °F at 6 A.M. to 7°F at noon. How much did the temperature increase?

Answers

Answer:

14 degrees F

Step-by-step explanation:

Answer:

Step-by-step explanation:

from -7 degrees F to 0 are 7 degrees change

from 0 to 7 are also 7 degrees,

in total are 14 degrees in change

A and B together complete a work in 20days. They worked together for 5days and B leaves. How long will A takes to finish the remaining work if A alone can finish the work 36days.

Answers

Answer:

27 days

Step-by-step explanation:

A alone, rate per day = 1/36

A and B together, rate per day = 1 / 20

Total Workdone for 5 days :

1/ 20 * 5 = 5 / 20 = 1/4

Fraction of work left :

1 - 1/4 = 3/4

3 / 4 * 36 /1

= (3 * 36) / 4

= 108 / 4

= 27 days

A right triangle is described as having an angle of measure six less than negative two times a number, another angle measure that is three less than negative one-fourth the number, and a right angle. What are the measures of the angles in degrees?​

Answers

The right angle is 90 degrees

write a polynomial in standard form that represents the area of the shaded region.

Answers

(2x-9)(x+5)
Then expand
2x^2 +10x -9x -45
Simplify
2x^2 +x -45

Two skateboarders are trying to build a ramp with an angle of 41°and a height of 3 ft. Which expression gives the length or
ramp?​

Answers

7° how do to make an appointment with your braces and you get the one to get the one you want me

How far is the portion of her route from A to D? Round to the nearest whole number. Explain. I NEED IT BY TONIGHT SO PLSS SOMEONE HELP ME!

Answers

9514 1404 393

Answer:

  A to D is about 2087 ft

Step-by-step explanation:

For the portion of the path of interest, the sine and cosine relations apply.

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

__

AB is the adjacent side to the angle marked 33°, with hypotenuse 975 ft.

  cos(33°) = AB/(975 ft)

  AB = (975 ft)cos(33°) ≈ 817.70 ft

BC is the opposite side in the same triangle.

  sin(33°) = BC/(975 ft)

  BC = (975 ft)sin(33°) ≈ 531.02 ft

CD is the hypotenuse of the right triangle BCD. The side BC that we know is opposite the given angle, so the sine relation applies.

  sin(46°) = BC/CD

  CD = BC/sin(46°)

  CD = (531.02 ft)/sin(46°) ≈ 738.21 ft

__

Now we know the segments of the path of interest:

  A–D = AB +BC +CD

  A–D = 817.70 ft + 531.02 ft + 738.21 ft = 2086.93 ft

  A–D ≈ 2087 ft

_____

Additional comments

The attachment shows all of the segments computed working counterclockwise from A. The angles in triangle DEF are computed using the Law of Sines from sides DF and DE and angle DEF. Segments EG and GH are computed using the Law of Cosines.

When we get to points F, G, H, we find that there is some inconsistency with the locations that would be computed working clockwise using AB and angle BFA. This inconsistency shows up in an error in the 119° angle in the attached figure.

This means that segments on the back side of the route, along path EFGHA, will vary somewhat depending on how they're computed.

We assume that points B, C, F, G are collinear.

Violet creates two spinners for a game. Each spinner is spun once, and the sum is recorded. The table represents the sums of the spinners and the frequency of each sum. A 2-column table with 7 rows. The first column is labeled sum with entries 5, 7, 9, 11, 13, 15, 17. The second column is labeled frequency with entries 1, 2, 3, 4, 3, 2, 1. What statement is true about the mean of the sums of the two spinners? The mean is 12. The mean is 16. The mean is the same as the median. The mean is the same as the range.

Answers

Answer:

c

Step-by-step explanation:

edg 2021

no one bothers to read why anyways

The first column is labeled sum with entries 5, 7, 9, 11, 13, 15, 17.

The second column is labeled frequency with entries 1, 2, 3, 4, 3, 2, 1.

We have given,

Violet creates two spinners for a game.

Each spinner is spun once, and the sum is recorded.

The table represents the sums of the spinners and the frequency of each sum.

A 2-column table with 7 rows.

What is the sum ?

The sum is the forword counting of the numbers.

The first column is labeled sum with entries 5, 7, 9, 11, 13, 15, 17.

The second column is labeled frequency with entries 1, 2, 3, 4, 3, 2, 1.

The follow me to get 50 points.

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1. Noah had $ 5.25 and Lin had $ 8.95. How much did they have altogether?
2. Diego had $ 21.32 and gave $ 9.50 to Elena. How much did he have left?
3. Andre deposited $ 24.50 into his bank account each week for 5 weeks. What was the total amount Andre deposited?
4. Four friends did a job together that paid $ 85.20. How much should each get if they all get an equal amount?

Answers

1. 5.25 + 8.95 = 14.20

2. 21.32 - 9.50 = 11.82

3. 24.50 × 5 = 122.5

4. 85.20 ÷ 4 = 21.3

Hope this helped! Please comment if you have any questions regarding how I got my answers. Stay safe.

A scientist mixes x liters of water into a container that had 10 liters of a mixture that is 12% salt and 88% water. The function f(x)=

Answers

Answer:

110 liters of water

Step-by-step explanation:

The computation of the number of liters of water added is shown below:

Let us assume the x be the liters of water

f(x) represents the salt percentage in the mixture

Given that

f(x) = 1.2 ÷ x + 10

f(x) = 1% = 1 ÷ 100  = 0.01

Now out the f(x) value in the above equation

0.01 = 1.2 ÷ x + 10

x + 10  = 1.2 ÷ 0.01

x + 10 = 120

x = 110 liters

Place the circles in order from the circle with the largest area to the circle with the smallest area.

Answers

Answer:

explain how like uh 0Oo. done

Step-by-step explanation:

PLEASE ANSWER QUICK I WILL GIVE BRAINLISEST


The relative humidity is 100%, and the temperature is hot. In a few sentences, explain how the weather would change if the temperature drops and becomes cool.

Answers

Answer:

ohhh no typon hope it helps

Answer:

When the temperature drops the molecules form closer together causing the weather to feel cool. When the temperature drops the humidity drops as well causing there to be less chance of rain and why snow occurs instead of rain when humidity and temperature drops.

Step-by-step explanation:

If this helped you please rate this comment, give it a like, and maybe mark it as branliest!

If 12 blueberries weigh 7.2 grams, find the weight of 32 blueberries.​

Answers

Answer:

The weight of 32 blueberries is 19.2

Step-by-step explanation:

We need to find what one blueberry weigh:

7.2 divided by 12 = 0.6

0.6 x 32 = 19.2

what is the answer to 2 (r-4)+5(r+2

Answers

Answer:

7r + 2

Step-by-step explanation:

I hope this helps have a great day

Multiply 2 by (r-4) we will get
2r-8
Then multiply 5 by (r+2)
5t+10
Let’s sum them
(2r+5r)+(10-8)
Which is equal
7r+2

I need help really fast!!!

Answers

Answer:

by using Pythagoras law

16²=(2x²)²+(2x²)²(since base angle of isosceles triangle is equal

16²=4x⁴+4x⁴

16²=16x⁴

16=x⁴

[tex]x = \sqrt[4]{16} [/tex]

x=2

PLSS HELPPP

FIRST PERSON TO ANSWER GETS BRAINLIEST!!!

Answers

answer: 38, 76, 65

explanation: i’m good at math

Answer:

top angle: 38bottom left: 77bottom right: 65

Step-by-step explanation:

Surat As-Sajdah is Surah:

options:
a) Makeya
b) Madaniya

Answers

Answer:

a

Step-by-step explanation:

SURAH AS-SAJDHA IS MAKEYH SURAH

16,-8,4...;6th term
The 6th term of the sequence is______.

Answers

Answer:

- [tex]\frac{1}{2}[/tex]  

Step-by-step explanation:

1) 16

2) 16 ÷ ( - 2) = - 8

3) - 8 ÷ ( - 2) = 4

4) 4 ÷ ( - 2) = - 2

5) - 2 ÷ ( - 2) = 1

6) 1 ÷ ( - 2) =  - [tex]\frac{1}{2}[/tex]

22 foot ladder is placed against a vertical wall of building with the bottom of the ladder standing on level ground 9 feet from the base of the building how high up the wall does the ladder reach

Answers

Answer:

20.1 feet

Step-by-step explanation:

We solve the above question using the Pythagoras Theorem

The Pythagoras Theorem =

Opposite² + Adjacent ² = Hypotenuse²

From the above question,

Opposite side = Height of the wall = x

Adjacent side = Distance from the base of the building = 9 feet

Hypotenuse = Length of the ladder = 22 feet

Hence:

x² + 9² = 22²

x² = 22² - 9²

x = √22² - 9²

x = √403

x = 20.0748599 feet

Approximately = 20.1 feet

Therefore, the height of the wall = 20.1 feet

Find the solution set of the inequality

8x - 8 ≤ -72

Answers

The answer is inequality is x< -8 u see for the right next to -72 the pattern like that I don’t have it so the less than has the under line

Answer:

x ≤ -8

Step-by-step explanation:

8x-8  ≤ -72

   +8     +8

8x ≤ -64

divide by 8

8x/8 ≤ -64/8

x ≤ -8

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