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
Igoryamba
3 years ago
13

Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. Thi

s method is designed to increase the likelihood that each baby will be a​ girl, but assume that the method has no​ effect, so the probability of a girl is 0.50.5. Assume that the groups consist of 3636 couples. Complete parts​ (a) through​ (c) below.
Mathematics
1 answer:
Dovator [93]3 years ago
8 0

Complete question:

Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby this mention is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect so the probability of a girl is 0.5. Assume that the group consists of 36 couples.

A) Find the mean and standard deviation for the number of girls in groups of 36 births.

B) Use the range rule of thumb to find the values separating results that are significantly low and significantly high.

C) Is the result of 33 girls significantly high? A result of 33 girls would suggest the method is effective or is not effective?

Answer:

a) mean = 18

Standard deviation =3

b) low range = 12

High range = 24

c) The result of 33 girls is significantly high. Yes, the method is effective.

Step-by-step explanation:

Given:

p = 0.5

n = 36

a) The mean is the product of n and p

Mean u = np

u = 36 * 0.5 = 18

The standard deviation is the square root of the product of n and p&q.

S.d ó = \sqrt{npq}

= \sqrt{np(1-p)}

= \sqrt{36(0.5)(1-0.5)} = \sqrt{9} = 3

b) To find the range rule of thumb:

• For low range

Low range = u - 2ó

= 18 - (2 * 3)

= 12

• High range

= u + 2ó

= 18 + (2*3)

= 24

c) The result is significantly high, because 33 is greater than 24 girls.

A result of 33 girls would prove the method as effective.

You might be interested in
3m - 12 =18<br> Step by step
9966 [12]

Answer:

3m=18+12

3m=30

divide both sides by 3

m=10

6 0
3 years ago
Read 2 more answers
Please help someone I need to turn this in in like 10 mins please helpppppp
konstantin123 [22]

Answer:

3.6 - 0.65 = 2.95

Step-by-step explanation:

subtract

3.6 - 2.95 = 0.65

6 0
3 years ago
The formula for the area of a circle is a= 2Ïr^2. how does the value for a change when r increases
ivann1987 [24]
The radius is half the diameter of the circle.  If the radius gets larger then the whole circle grows.  When the circle gets larger, the area gets larger too.
6 0
3 years ago
Find the value of X in the triangle shown below
coldgirl [10]

Answer:

x = sqrt(32)

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2+ b^2 = c^2

7^2 + x^2 = 9^2

49+x^2 = 81

Subtract 49 from each side

x^2 = 81-49

x^2 =32

Take the square root of each side

sqrt(x^2) = sqrt(32)

x = sqrt(32)

3 0
3 years ago
Read 2 more answers
PLEASE HELPPP!
Liono4ka [1.6K]

Answer:

Bottle B has a larger volume of lotion therefore the correct answer

Step-by-step explanation:

1×2×6=12/3=4 Bottle A

1.5×3×4=18/3=6 Bottle B

8 0
2 years ago
Other questions:
  • Mark talked on his cell phone 3 hours over the weekend. Generic talked on his phone 1 9/10 hours. How much longer did mark talk
    9·1 answer
  • What is the approximate area of the circle shown below?
    6·2 answers
  • The submarine is cruising at a depth of 50 meters, then dives 75 meters, then ascends (moves in the direction of the surface )60
    6·1 answer
  • Simplify –3√ 2 3√ 8 .
    10·1 answer
  • Sammy is making a bacon wrapped pizza for dinner. She is wrapping 47.1 inches of bacon around the outside edge of the pizza. Wha
    13·1 answer
  • A worker is paid $0.07 on the first day, $0.14 on the second day, $0.28 on the third day, and so on. How much is the worker paid
    7·1 answer
  • What is equation of a line parallel to y=1/2x-3 that passes through the point(3,2)? Solve by graphing or mathematically
    8·1 answer
  • .
    14·1 answer
  • Combine and Simplify:<br> 48 (1/4x - 1/3y - 2/6x - 3/8y - 2/3<br> WRITE 2 WAYS!
    7·1 answer
  • FIRST CORRECT ANSWER GETS BRAINLIEST
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!