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
raketka [301]
3 years ago
7

Given a mean of 43.8 and a standard deviation of 8.7, what is the z-score of the value 40 rounded to the nearest tenth?

Mathematics
2 answers:
rewona [7]3 years ago
6 0
For the answer to the question above, 
  <span>Sample mean is given by, 

x = (1/n)∑x˅i .... ˅ means sub 

x = (1/5)(60 + 40 + 35 + 45 + 39) 
= 43.8 

z-score is given by, 

z = (X - μ)/σ .... μ is population mean, σ is the standard deviation 

z = (43.8 - 43.8)/8.7 
= 0 
</span>so the answer is zero
I hope my answer helped you.
Firlakuza [10]3 years ago
3 0

Answer:

-.4

Step-by-step explanation:

z score = value-mean / standard deviation

z score = 40-43.8 / 8.7

-.436 = 40-43.8 / 8.7

-.436 to nearest 10th  -.4

You might be interested in
Hello! Question.
Bumek [7]
If I’m analyzing the question correct, you would pay 912 in total
8 0
3 years ago
Please help! I will mark as brainliest IF answer is right. &lt;3
weeeeeb [17]
Hope this helps. :D
(Please mark as brainliest thanks)

8 0
3 years ago
Find the lateral area for the prism. L.A. =<br> Find the total area for the prism. T.A. =
Ksivusya [100]
The lateral area of the prism is given by:
LA=[area of the two triangles]+[area of the lateral rectangles]
hypotenuse of the triangle will be given by Pythagorean:
c^2=a^2+b^2
c^2=6^2+4^2
c^2=52
c=sqrt52
c=7.211'
thus the lateral area will be:
L.A=2[1/2*4*6]+[6*8]+[8*7.211]
L.A=24+48+57.69
L.A=129.69 in^2

The total are will be given by:
T.A=L.A+base area
base area=length*width
=4*8
=32 in^2
thus;
T.A=32+129.69
T.A=161.69 in^2

6 0
4 years ago
Read 2 more answers
Sara is a librarian and works at least 10 hours per week. If Sara would like to work extra shifts, they are added to her
slava [35]

Answer:

she will work forever

I don't know sorry i tried to answer it

Step-by-step explanation:

8 0
3 years ago
what is "The temperature outside at 6 a.m. is 4 degrees celsius. The temperature rising by 1.5 degrees celsius every hour." in a
LiRa [457]

Answer:

7 a.m is 5.5

Step-by-step explanation:

(6=4)+1.5=(_+1.5)

make a T chart

thats how it should work for you

7 0
3 years ago
Other questions:
  • What is the price of discount is applied #6,8,10
    7·1 answer
  • If the range of the function f(x)=x/4 is {28, 30, 32, 34, 36}, what is its domain?
    14·1 answer
  • Factor –8x3 – 2x2 – 12x – 3 by grouping. What is the resulting expression?
    8·2 answers
  • Are they simular and why​
    15·1 answer
  • Write the following statement as a conditional statement.
    9·1 answer
  • A person has three times as many nickels as quarters. of the total face value of these coins is $3.20, how many of each type of
    11·1 answer
  • Find the slope of the line passing through <br> (-8,10) and (-8,-7)
    6·1 answer
  • para ayudar a una fundación, algunos estudiantes de grado séptimo decidieron reunir alimentos y donarlos. Andrea aporto 2,5 hg d
    12·1 answer
  • A company makes skis for junior skiers with lengths of 120 to 140 cm inclusive. Identify the compound inequality.
    10·1 answer
  • Which equation could have been used to create this table? need answer fast
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!