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
Setler79 [48]
3 years ago
11

Please help me on this.

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
8 0
What is ur subject i would lov o help
You might be interested in
Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. Thi
Dovator [93]

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.

8 0
3 years ago
In △RST, RW=27 cm.
sertanlavr [38]

Hello!

I just completed this test and if I'm correct in assuming that this is the same problem I did, then your answer would be 18 cm.


Hope this helps! :)

7 0
2 years ago
If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other one
ivanzaharov [21]
The right angle up at the number one and the unknown angle down at 2 are corresponding angles. corresponding angles are congruent. therefore angle down by two is a right angle and so the transversal is perpendicu lar to both lines
8 0
3 years ago
What's the largest number that I can write with the numbers 15270486
alexdok [17]
87654210 is the largest number
6 0
2 years ago
75°, 75°, 75°, 78° 80°, 80°, 115° The daily temperatures for a week in Brownsville are shown. Which measure of central tendency
svet-max [94.6K]
Median i belive hope its right
8 0
3 years ago
Other questions:
  • Among all pairs of numbers with a sum of 185, find the pair whose product is maximum. write your answers as fractions reduced to
    14·2 answers
  • Your friend’s heart beats 18 times in 15 seconds when at rest. While running, your friend’s heart beats 25 times in 10 seconds.
    6·1 answer
  • U.s. air has a net income before tax 60,000. it is expected 45% of net income will go to federal and state taxes. how much will
    12·1 answer
  • farmer fran has 47 barnyard animals,consisting of only chickens and sheep . if these animals have 138 legs , how many of each ty
    5·2 answers
  • Bert’s cab company charges $1.00 plus an additional $3.00 per mile for a ride. Madeline’s cab company charges $3.00 plus an addi
    8·2 answers
  • PLEASE HELP!! i'm struggling sm :/
    15·1 answer
  • What is 20 minus -13
    7·1 answer
  • In the figure shown, which pair of angles must be supplementary
    13·1 answer
  • In the diagram below, the angle of depression from the top of the lighthouse to a speed boat is 27 degrees.  The base of the lig
    10·2 answers
  • a ladder 15 feet tall is placed 7 feet from a building that is perpendicular to the ground. how tall is the building?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!