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
Anastasy [175]
3 years ago
7

Actual lengths of pregnancy terms for a particular species of mammal are nearly normally distributed about a mean pregnancy leng

th with a standard deviation of 18 days. About what percentage of births would be expected to occur more than 54 days after the mean pregnancy​ length?
Mathematics
1 answer:
HACTEHA [7]3 years ago
8 0

Solution :

The data is normally distributed.

The standard deviation is 18 days

Here the data is normally distributed and 54 days is 3 days of standard deviation.

Therefore, the percentage of the births that would be \text{expected to occur} within the 54 days of the mean \text{pregnancy} length is given by :

= P( -3 < Z < 3)

= 0.9544

= 95 %

Therefore, about 95% of the births would be \text{expected to occur} within 54 days of the men \text{pregnancy} length.

You might be interested in
Can someone do this for me i don't get it.
zimovet [89]
1)
The answer is B, y=4x because the y column is always 4 times the x column

2)
Domain = (1,2)
Range = (5,6,7,8)
Function = there is no function because the x value has multiple y values associated with it

3) No
4) yes
5) Tia is correct because the y values are half of the x values
4 0
3 years ago
Abag contain 3 red ,5 black and 4 white marbles. one marble is drawn at random. what is the probablity not black marble​
kondaur [170]
<h3>Answer:    7/12</h3>

=================================================

Explanation:

There are B = 3+5+4 = 12 marbles total, of which A = 12-5 = 7 are not black. Or you could note that we have A = 3 red + 4 white = 7 marbles that are not black.

The probability of selecting a non-black marble is A/B = 7/12

7/12 = 0.5833 = 58.33% approximately

8 0
3 years ago
A company surveyed a random group of people at a mall. They found that 43% of women and 58% of men said they might buy the compa
TiliK225 [7]

Answer:

The survey was BIASED and CANNOT be extended to the general population.

Step-by-step explanation:

I took the test bestie.

3 0
3 years ago
SERIOUS ANSWERS ONLY PLZ
statuscvo [17]

Answer:

<u>The standard deviation of the uniform distribution is:</u>

  • σ=(b−a)/√12

<u>U(3, 12)</u>

  • σ = (12−3)/√12 = 9/√12 = 2.5981

<u>U(80, 250)</u>

  • σ = (250−80)/√12 = 170/√12 = 49.0748

<u>U(4, 93)</u>

  • σ = (93−4)/√12 = 89/√12 = 25.6921

5 0
3 years ago
2) Abby made 5 1/2 cups of banana pudding. She served 7/8 cup of the pudding to her kids for dessert.
frez [133]

Answer:

<u>37/8</u>

Step-by-step explanation:

we are going to create 5 1/2 into an improper fraction for now, so it is easier to manipulate.

5 1/2 = 11/10

in order to find the answer, we need to set them both to a common denominator(we need to make sure they have the same denominator so it is easier to subtract)

11/2 if we just take 1 of the cups that Abby made and subtract that by 7/8 that give us the answer

11/2 - 1 = 9/2

we will now us the cup we subtracted from that and "give it to the kids"

 1 = 8/8

so

8/8 - 7/8 = 1/8

so we have 1/8 leftover from that cup, so we can add that back

since 1/8 is a hard number to just add off the top of your head, we can just change the denominator of 9/2 into 8 instead of 2:

9/2 = 36/8

so

1/8 + 36/8 = 37/8

so since 37/8 cannot be simplified anymore, the answer is

<u>37/8</u>

3 0
2 years ago
Other questions:
  • Breaking stuff let {xi} n i=1 be a sample of random variables of size n with the property that xi ∼ n (µ, σ2 ) and cov(xi , xj )
    13·1 answer
  • A rectangular athletic field is twice as long as it is wide. If the perimeter of the field is 96, what are it's dimensions?
    9·2 answers
  • Which point is a solution to this graphed system of inequalities?
    13·1 answer
  • 3(q-7)=27 solve for q
    15·2 answers
  • Fine the volume of the prism.
    6·1 answer
  • Translate the following argument in a standard form categorial syllogims then use venn diagram or rules for syllogim to determin
    15·1 answer
  • How to square root this equation
    12·1 answer
  • 3) 2(x - 10) + 1 = 60
    11·1 answer
  • Find the sum of <br>(5ײ - 10×y + 4y²) + ( 7ײ + 8×y- 6y²)​
    15·1 answer
  • GEOMETRY Find the diameter d of the circle in the figure at the right. Round to the nearest tenth if necessary.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!