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
EleoNora [17]
3 years ago
5

1. A man has 5 grandchildren, 4 girls and 1 boy. He thinks this is unusual. If the probability that any child born

Mathematics
1 answer:
mojhsa [17]3 years ago
4 0

Answer:

6.25%

Step-by-step explanation:

To know the final probability that this has happened, we must multiply the probability of each event, they tell us that the probability that it is a girl is 1/2 and this happened 4 times, therefore:

(1/2) ^ 4 = 0.0625

that is, the probability that 4 girls are born is 6.25%

an unusual probability is considered when it is less than 5%, therefore, although it approaches this figure, it is not unusual

You might be interested in
Find the length of the leg. If your answer is not an integer, leave it in simplest radical form. answer asap pls
Nitella [24]
A 45-45 90 triangle has two lengths that are equal, and the hypotenuse is √2 times those lengths. 

Therefore: 
Let x = the length of a leg (doesn't matter which one, they are equal)
√2 * x = 24        Divide both sides by √2
x = 24 / √2        
To get the radical out of the denominator, multiply the right side by √2/√2
x = 24√2 / 2
x = 12√2      Answer is B
3 0
3 years ago
Read 2 more answers
one evening, 2/3 of the students in Rick's class watched television. of this students, 3/8 watched a reality show. Of the studen
Dimas [21]

Answer:

0.0625 of the students recorded the show.

Step-by-step explanation:

2/3×3/8×1/4= the fraction of people who watched and recorded the show (0.0625)

6 0
3 years ago
Helppppppppppp meeeeeeeeeee
kozerog [31]

Answer:

It's 11.72

Step-by-step explanation:

Area=)1/2×15/4×25/4

Answer》11.72

Hope it helps...

Have a great day

3 0
3 years ago
Read 2 more answers
56 points for whoever answers correctly !
vladimir2022 [97]

We need to use what we know about rectangles to get:

1)

  • Total length = 2*W + 8ft
  • Total width = W + 8ft

2) area = 2*W^2 + 24ft*W + 64ft^2

<h3>Working with rectangles:</h3>

We know that rectangles are defined by two measures, width W and length L.

Here we do know that the length of the pool is twice the width, and the width is W, then the length of the pool is:

L = 2*W

And we also have a sidewalk of 4ft all around the pool, now we want to get:

1) The total length and the total width.

This will be equal to the length/width of the pool <u>plus twice the width of the sidewalk</u> (we add it twice because is in both ends) then we have:

  • Total length = L + 2*4ft = 2*W + 8ft
  • Total width = W + 2*4ft = W + 8ft

2) Now we want to get an expression for the total area of the pool.

Remember that for a rectangle the area is just the product between the width and the length, so to get the area of the pool with the sidewalk we just take:

area = (total length)*(total width)

area = (2*W + 8ft)*(W + 8ft) = 2*W^2 + 3*W*8ft + 64ft^2

area = 2*W^2 + 24ft*W + 64ft^2

This is the equation that gives the total area as a function of W, the width of the pool.

If you want to learn more about rectangles, you can read:

brainly.com/question/17297081

6 0
2 years ago
A recent study examined the association between high blood pressure and increased risk of death from cardiovascular disease. The
sergey [27]

According to sources, the most probable answer to this query is that thee results seems to support a .05 probability. Meaning, this supports the hypothesis' claim. Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
6 0
3 years ago
Other questions:
  • What is the measure of angle fsm
    15·1 answer
  • What is the value of g?
    14·2 answers
  • Addinfg in scientific notation 9x10^3 +2.3x10^4=
    7·1 answer
  • So im working with factoring by grouping and factoring trinomials by grouping in my algebra 2 class i need some help with a 6 qu
    15·1 answer
  • Find CD<br> CD = [? ]<br><br> please help??
    5·2 answers
  • A 9 kg bag of mangoes for $12 what is it per kg
    12·2 answers
  • When the angle of elevation to the sun is 28 degrees, a flagpole casts a shadow that is 42.5 ft long. What is the
    6·1 answer
  • Please help ! if i get an answer now i’ll also know how to do it in the future c:
    7·1 answer
  • Please help me Factor 21x+56xy
    14·1 answer
  • In how many ways can one write the numbers 1, 2, 3, 4, 5, and 6 in a row so that given any number in the row, all of its divisor
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!