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
Norma-Jean [14]
2 years ago
8

A hospital directed collects data on birth weight of newborn babies born in the maternity ward the Director find that the birth

weights are approximately normally distributed with a mean of 3300 grams and a standard deviation of 525 grams the empirical rule states that in a normal distribution 68% of values are within one standard deviation of the mean 95% of values are within two standard deviation of the mean and 99.7% of values are within three standard deviations of the mean based on empirical rule what percent of newborn babies born in the maternity wing of this hospital can be expected to have birth weight greater than 2250 grams
Mathematics
1 answer:
omeli [17]2 years ago
6 0

Answer:

97.5% of newborn babies born in the maternity wing of this hospital can be expected to have birth weight greater than 2250 grams.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

The normal distribution is symmetric, which means that 50% of the values are below the mean and 50% are above.

In this problem, we have that:

Mean of 3300, standard deviation of 525.

What percent of newborn babies born in the maternity wing of this hospital can be expected to have birth weight greater than 2250 grams?

2250 = 3300 - 2*525

2250 is 2 standard deviations below the mean.

Of the 50% of the weights below the mean, 95% are going to be greater than 2250(less than 2 standard deviations of the mean).

Of the 50% of the weights above the mean, 100% are going to be greater than 2250.

So

p = 0.5*0.95 + 0.5 = 0.975

0.975*100% = 97.5%

97.5% of newborn babies born in the maternity wing of this hospital can be expected to have birth weight greater than 2250 grams.

You might be interested in
Chapter : EXPONENTS AND POWERS<br> Can anyone give me answer for this please
Aneli [31]

The value of given expression is: 3

<h3>What is exponents and powers?</h3>

Exponent refers to the number of times a number is used in a multiplication. Power can be defined as a number being multiplied by itself a specific number of times.

9*(15)³/45 * 5^{-2}/9

= 3²* 3³*5³/5² * 3² * 3² * 5

= 3^{2+3-4} * 5^{3-3}

= 3*1

=3

Learn more about exponents and power here:

brainly.com/question/15722035

#SPJ1

5 0
2 years ago
PLZ HELP, BEST ANSWER WILL BE CHOSEN FOR BRAINLIEST!!!!!
boyakko [2]

Answer:

A square root of 80 m

Step-by-step explanation:

5 0
3 years ago
How do I create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12
natka813 [3]
(3+8-4)×2-12
3+8=11
11-4=7
7×2=14
14-12=2
5 0
3 years ago
How can an expression using the distributive property can be simplified to 12a + 18b - 6c
elena-s [515]
Look for a common number in all the terms

6(2a+3b-c)
3 0
3 years ago
Help me do this i will pick brailest if right and it is 45 points!
sweet-ann [11.9K]

Answer:

8/21

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of 4x 5y if x = 2, &amp; y = 1? 9 12 13 14
    12·1 answer
  • What does PEMDAS stand for?
    14·2 answers
  • What is the correct answer in this question? I actually don't get it.
    8·2 answers
  • Is the answer A,B,C or D.
    5·1 answer
  • The acid desert of the business on the March 31 2015 are worth rupees 500000 and its capital is rupees 350000 and its liabilitie
    8·1 answer
  • Evaluate 14 + (-2). (1 point)<br> O<br> 16<br> -16<br> O<br> -12<br> 12
    15·1 answer
  • Find the original price of the object. Be sure to show your work and explain your reasoning.
    14·2 answers
  • When you flip a biased coin the probability of getting a tail is 0.4. How many times would you expect to get tails if you flip t
    5·1 answer
  • 2(11/8y + y) = 190<br> Solve for y
    15·2 answers
  • What is the measure of angle x?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!