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
ycow [4]
3 years ago
14

Find the indicated probability by using the complementation rule. A percentage distribution is given below for the size of famil

ies in one U.S. city. Size Percentage 2 39.9 3 24.4 4 20.1 5 10.8 6 3.3 7 1.5 A family is selected at random. Find the probability that the size of the family is 4 or more. Round results to three decimal places.
a. 0.156
b. 0.844
c. 0.357
d. 0.201
Mathematics
1 answer:
arlik [135]3 years ago
7 0

Answer:

The correct option is c.

Step-by-step explanation:

The percentage probability distribution is:

Size (X)      Percentage

 2                   39.9

 3                   24.4

 4                   20.1

 5                   10.8

 6                    3.3

 7                     1.5

Total             100.0

Compute the probability that the size of the family is 4 or more as follows:

P (X ≥ 4) = P (X = 4) + P (X = 5) + P (X = 6) + P (X = 7)

              = 0.201 + 0.108 + 0.033 + 0.015

              = 0.357

Thus, the probability that the size of the family is 4 or more is 0.357.

The correct option is c.

You might be interested in
Please help! need the answer
san4es73 [151]

Answer:

Each base angle is 81°

Step-by-step explanation:

A pennant is in the shape of an isosceles triangle and the vertex angle is 18°.

An iscosceles triangle has two equal sides and two equal angles.

So assuming the base angles measure b° each;

b° + b° + 18° = 180° (angles in a triangle add up to 180°)

2b° = 180° - 18° = 162°

b = 162° ÷ 2 = 81°

So each base angle is 81°

6 0
3 years ago
What is the area of this shape?
m_a_m_a [10]

Step-by-step explanation:

idk the answer but find the area of a circle with the radius of 45 m and then find the area of the rectangle then add them together.

5 0
3 years ago
Triangles ABC and DEF are similar
Sloan [31]

Answer:did U Get the answer or no

Step-by-step explanation:

Did u get the answers cuz I got the same question

7 0
3 years ago
Evaluate the expressions. ​
frutty [35]

Answer:

(-6/7)^0=1

-(2)^0=-1

Step-by-step explanation:

hope it helped

can I have a brainliest please i really need that

7 0
2 years ago
Read 2 more answers
Select the correct answer <br> Which is the correct graph for the function <br> F(x)=x+3/x^2-1
Anna11 [10]

Answer:

B i think

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How do you know if a coordinate on a graph is positive or negative?
    8·2 answers
  • 10 points to whoever answers this CORRECTLY and QUICKLY. Thanks
    8·1 answer
  • If I told you that Mexico's population was 100,000,000 and that their population growth rate was 3.5%, then what would their pop
    13·1 answer
  • What is the lenght when height is 36 and width is 28 and the area is 6112
    6·1 answer
  • the volume of a triangular prism is increased by a factor of 8. By what factor is the surface area increased?
    6·1 answer
  • (JUSTIFY)The diameter of a wheel is 15 inches. How far would your hand move in one full turn of the wheel if you do not let go o
    5·1 answer
  • Write Help Marshmello i wasn't born yesterday.
    5·2 answers
  • A salesperson at a jewelry store earns 6% commission each week. Last week, he
    11·1 answer
  • Solve the equation or formula for the specified varlable. BANKING The formula for simple interest I is I = Prt, where P is the p
    14·1 answer
  • 5. Renee's baby sister weighs 7 pounds 2 ounces. How many ounces does her sister weigh?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!