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
deff fn [24]
3 years ago
7

A study studied the birth weights of 1,600 babies born in the United States. The mean weight was 3234 grams with a standard devi

ation of 871 grams. Assume that birth weight data are approximately bell-shaped. Estimate the number of newborns who weighed between 1492 grams and 4976 grams. Write only a number as your answer. Round your answer to the nearest whole number. Hint: Use the empirical rule. Answer:
Mathematics
1 answer:
Annette [7]3 years ago
7 0

Answer: 1527

Step-by-step explanation:

Given: Mean : \mu = 3234\text{ grams}

Standard deviation : \sigma=871\text{ grams}/tex]Sample size : [tex]n=1600

The formula to calculate the z score is given by :-

z=\dfrac{X-\mu}{\sigma}

For X=1492

z=\dfrac{1492-3234}{871}=-2

The p-value of z =P(z

For X=4976

z=\dfrac{4976-3234}{871}=2

The p-value of z =P(z

Now, the probability of the newborns weighed between 1492 grams and 4976 grams is given by :-

P(1492

Now, the number  newborns who weighed between 1492 grams and 4976 grams will be :-

1600\times0.9544997=1527.19952\approx1527

You might be interested in
A small glass holds 180 ml. How many glasses can be filled from a 2 litre bottle?
Vedmedyk [2.9K]
If you can assume that the 2l bottle is full, then it holds 2000ml.
2,000 divided by 180 = 11.11.
So the answer is, if you don't spill any, 11 glasses may be filled, with a bit left over.
4 0
3 years ago
Read 2 more answers
I NEED HELP!!!
zepelin [54]
In order to answer this one, it's really really really really helpful if you know what the law of cosines says. In fact it's absolutely necessary. The law of cosines says if you know two sides of a triangle and the angle between them then you can use that information to find the length of the third side. In the picture you know the lengths of two sides and you know the angle between them. So you can use the law of cosines to find the length of the third sidethat. That's side AC.
6 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME ?WITH THE QUESTION I JUST POSTED
xz_007 [3.2K]
<em /><em /><em /><em />ms<u /><u /><u /><u /><u>re</u><u> that the answer </u><u>s 2,500</u>
6 0
2 years ago
Can you please help me with number 21 please
yKpoI14uk [10]

Answer:

well it simply tells you if you think your right on all of them then press yes if not press no

8 0
2 years ago
Given f(x)=-3x+3solve for x when f(x)=6​
natali 33 [55]

Answer:

x = -1

Step-by-step explanation:

Given: f(x) =  - 3x  + 3

Solve for x, When: f(x) = 6

Step by step:

- 3x + 3 = 6

- 3x = 6 - 3

- 3x = 3

x = 3 \div  - 3

\boxed{\green{x =  - 1}}

3 0
2 years ago
Other questions:
  • Please help and can you please give an explanation.
    15·1 answer
  • Write (8a^-3)^-4/3 in simplest form. <br><br> Please show your work!
    10·2 answers
  • Write in point-slope form an equation of the line that passes through the point (8, 9) with slope 7.
    10·1 answer
  • Micro-Tech, Inc.'s stock closed at 7.375, up 0.125. Yesterday's closing price was
    14·1 answer
  • What is the solution to Negative 1 minus 7? A number line going from negative 10 to positive 10. –8 –6 6 8
    6·2 answers
  • Please i need help if you know it please let me know how you got it if u want if u dont its finee​
    11·2 answers
  • Trigonometry, NEED HELP ASAP
    5·1 answer
  • What is 1.6 divided by n equals 0.016?
    5·1 answer
  • Please help!! "Quadrilateral ABCD is inscribed in the circle below. Find the measure of all four angles."~!!!!!
    6·1 answer
  • A car is purchased for 1200. Each year it loses 25% of its value. After how many years will the car be worth 2800 or less?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!