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
Ray Of Light [21]
3 years ago
12

From families with four children a family is chosen at random. Let X be the number of boys in the family. Calculate and sketch t

he distribution function of X. Assume that in a four-child family all gender distributions (for example, BBBB, BBBB, BBBB, BBBB, etc.) are equally probable.
Mathematics
1 answer:
alisha [4.7K]3 years ago
4 0

Solution :

Given :

X = the number of boys in a family of four children

Families having four children are chosen randomly.

The gender distribution in the four child family are equally probable.

Thus,

 X                P(X)                                          CDF

0             ^4C_0 (1/2)^{4}        = 1/16                     \frac{1}{16}

1               ^4C_1 (1/2)^{4}       = 1/4                       \frac{5}{16}

2                ^4C_2 (1/2)^{4}      = 3/8                      \frac{11}{16}

3                ^4C_3 (1/2)^{4}      = 1/4                       \frac{15}{16}

4                  ^4C_4 (1/2)^{4}    = 1/16                      1

You might be interested in
Pls pls help me I will mark you brainest
Musya8 [376]

Answer:

It would be 125m^2

Step-by-step explanation:

17*10=170

170/2=85

8*10=80

80/2=40

85+40=125

7 0
2 years ago
Read 2 more answers
A company charges $7 for a T-shirt and ships any order for $22. A school principal ordered a number of T-shirts for the school s
Harlamova29_29 [7]

Answer: The awnser would be D

5 0
3 years ago
I just need help finding h pleasww
SCORPION-xisa [38]

Answer:

  • h = (2/3)√3
  • b = 3√2

Step-by-step explanation:

It is useful to remember the ratios between the side lengths of these special triangles.

  30°-60°-90° ⇒ 1 : √3 : 2

  45°-45°-90° ⇒ 1 : 1 : √2

__

h is the shortest side, and the given length is the intermediate side. This means ...

  h/1 = 2/√3

  h = 2/√3 = (2/3)√3 . . . . . . simplify, rationalize the denominator

__

b is the longest side, and the given length is the short side. This means ...

  b/√2 = 3/1

  b = 3√2 . . . . . multiply by √2

8 0
2 years ago
Write an absolute value equation that represents these heights 10 and 15
djverab [1.8K]

Answer:

An equation for the absolute value that represents the midpoint of 10 and 15 would be (10 + 15)/2 = 12.5

6 0
3 years ago
Describe the steps you would take to solve the
ikadub [295]

Answer:

32.5

Step-by-step explanation:

d

4 0
3 years ago
Read 2 more answers
Other questions:
  • The area of a circle is 37 square meters. find the radius to the nearest hundredth
    7·1 answer
  • Select the most SPECIFIC name for this shape
    7·1 answer
  • While bird watching gabrielle saw 6 robins and 3 blue jays. Chase saw 3 robins and 6 blue jays. Who saw more birds? Tell which p
    6·1 answer
  • julio is payed 1.4 times his normal hourly rate for each hour he works over 30 hours in a week last week he worked 35 hours and
    9·1 answer
  • What is the distance between -36 and -4 on a number line?
    5·2 answers
  • If it usually takes her 30 minutes to drive the 12 miles from her home to her workplace, how long will it take Roxana to drive f
    10·1 answer
  • A skyscraper elevator can move one-teeth of a mile in half a minute. What is this speed expressed in miles per minute?
    11·1 answer
  • Help ASAP 40 Points and Brainliest
    8·1 answer
  • Let ABC be an isosceles triangle with AB = AC and ∠BAC=30°. Side AB and the median AD contain points Q and P respectively (point
    6·1 answer
  • WILL GIVE BRIANLEST!!!!!!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!