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
Inessa [10]
3 years ago
8

The number in the middle of a data set best describes

Mathematics
1 answer:
fredd [130]3 years ago
4 0
The answers is median
You might be interested in
Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights
Fed [463]

Answer:

a) 615

b) 715

c) 344

Step-by-step explanation:

According to the Question,

  • Given that,  A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 732 babies born in New York. The mean weight was 3311 grams with a standard deviation of 860 grams

  • Since the distribution is approximately bell-shaped, we can use the normal distribution and calculate the Z scores for each scenario.

Z = (x - mean)/standard deviation

Now,

For x = 4171,  Z = (4171 - 3311)/860 = 1  

  • P(Z < 1) using Z table for areas for the standard normal distribution, you will get 0.8413.

Next, multiply that by the sample size of 732.

  • Therefore 732(0.8413) = 615.8316, so approximately 615 will weigh less than 4171  

 

  • For part b, use the same method except x is now 1591.    

Z = (1581 - 3311)/860 = -2    

  • P(Z > -2) , using the Z table is 1 - 0.0228 = 0.9772 . Now 732(0.9772) = 715.3104, so approximately 715 will weigh more than 1591.

 

  • For part c, we now need to get two Z scores, one for 3311 and another for 5031.

Z1 = (3311 - 3311)/860 = 0

Z2 = (5031 - 3311)/860= 2  

P(0 ≤ Z ≤ 2) = 0.9772 - 0.5000 = 0.4772

  approximately 47% fall between 0 and 1 standard deviation, so take 0.47 times 732 ⇒ 732×0.47 = 344.

5 0
3 years ago
Dr.Purple wants to buy candy bars for all his 143 math students. He buys 9 cases plus 8 more individual bars. How many bars are
Annette [7]

There is 15 bars in each case.

Subtract 8 from 143 and you get 135.

Divide 135 by 9 and you get 15 :)

3 0
2 years ago
Read 2 more answers
What's one tenth of 300
brilliants [131]
30 is your mystery answer :)
7 0
3 years ago
Read 2 more answers
Need help with this problem.
Galina-37 [17]

Answer:

18

Step-by-step explanation:

To find this we must divide 45 by 20 which gives the answer of 2.25. As we know this we now must multiply that by 8 resulting in to 18.

Therefore the answer is 18

5 0
3 years ago
I need to know the answer to the second one.
Debora [2.8K]

Travis got 43 dollars

Robin collected 35 percent more so we can model this with

Travis + (Travis x .35)

43 + 15.05 =58.05

Jessica colelcted 20 percent less so

Travis - (Travis x .20)

43 - 8.6 = 34.3

34.4 + 58.05 + 43 = 135.45

C is the closest

7 0
3 years ago
Read 2 more answers
Other questions:
  • 3[(15 - 3) squared divided by 4]
    12·1 answer
  • What is the value of the expression 8p4
    5·1 answer
  • Bruce is going to call one person from his contacts at random. He has 25 total contacts. 20 of those contacts are from his neigh
    12·2 answers
  • Which line segment is not a diagonal through the<br><br> interior of the cube shown?
    11·1 answer
  • What will the sale price be of a t-shirt that has an original price of $24.99 and is on sale for 30% off
    6·1 answer
  • What is the answer to this question
    14·2 answers
  • Which word best describes the slope of the line?
    7·2 answers
  • HELP PLEASE WILL GIVE BRAINLIEST
    6·1 answer
  • Crew labeled 1/4-20 x 5/8 has a length of
    14·1 answer
  • A traveler pulls a suitcase, as shown in the figure.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!