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
abruzzese [7]
3 years ago
9

If a student scored 82 points on a test where the mean score was 78.2 and the standard deviation was 6.7. the student's z score

is .
Mathematics
1 answer:
vodka [1.7K]3 years ago
5 0
Z-score formula is z=(x-m) / sd
x = data value
m= mean
sd =  standard deviation

z= (82-78.2) / 6.7
  =0.567
  =0.57
You might be interested in
Which of the expressions below are equal to 3x + 9y + 15? Select all that apply.
devlian [24]
Answer:
C) 3(x + 3y + 5)
D) 3x + 3(3y +5)
5 0
3 years ago
Need math help please
GREYUIT [131]

Answer:

D

Step-by-step explanation:

7 0
2 years ago
a triangle has a perimeter of 49 inches. the medium side is 7 more than the short side, and the longest side is 5 times the leng
slavikrds [6]
Short side length = x
Medium side = x + 7
Long side = 5x
Total 49, so
x + x + 7 + 5x = 49
If you combine like terms:
7x + 7 = 49
Subtract 7 from both sides
7x = 42
Divide both sides by 7
x = 6 inches
4 0
3 years ago
Read 2 more answers
Which is the better buy?<br>12 bars of soap for $10.00 or 5 bars of soap for $4.00
Eddi Din [679]

Answer:

12 bars of soap for $10.00, but actullay the are both the same. if u buy 5 bars of soap for $4.00 then the next time u buy 7 bars of soap, your are still using the same amount of money.

Step-by-step explanation:


4 0
3 years ago
What is the measure of ZB?<br> 28<br> 36<br> B<br> [?] degrees<br> Enter
Sindrei [870]
All triangles have a measurement of 180 degrees. Therefore, we can use this information to make an equation to find the value of angle B.

Angle B = 180 - (28 + 36)
Angle B = 180 - 64
Angle B = 116

So, angle B is equal to 116 degrees.
4 0
3 years ago
Other questions:
  • A boat travels 30 miles north, 20 miles east and 40 miles northeast. What is the angle of rotation of the boats direction from t
    15·1 answer
  • Please help me with question when your answering it make sure you explain it so I get it
    7·1 answer
  • Graph image of figure using transformation given. Reflection across x-axis.
    11·1 answer
  • Which ordered pairs are in the solution set of the system of linear inequalities?
    14·2 answers
  • Which is bigger -2.7 or -2.73
    11·2 answers
  • Select the expression equivalent to
    8·1 answer
  • Factor the expression 8x + 12 using the GCF.<br> 8x + 12 =
    5·1 answer
  • Please help me circles.....
    15·2 answers
  • Help me <br>#no spams.. ​
    14·2 answers
  • Simplify the expression:<br> (6x² − x + 5)<br> minus<br> (8x² + 8x-7)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!