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
jeka57 [31]
2 years ago
12

The mean of a set of data is -3.82 and its standard deviation is 2.31. Find the z score for a value of 3.99.

Mathematics
1 answer:
gtnhenbr [62]2 years ago
6 0

Answer:

The z- score for a value of 3.99 will be 3.38.

Step-by-step explanation:

It is given that the mean of a set of data is -3.82 and its standard deviation is 2.31.

Thus, the value of the z-score=\frac{value-mean}{standarddeviation}

=\frac{3.99-(-3.82)}{2.31}

=\frac{3.99+3.82}{2.31}

=\frac{7.81}{2.31}

=3.38

Thus, the z- score for a value of 3.99 will be 3.38.

You might be interested in
Correct answers only please!
irina1246 [14]

Answer:

  C. 67 mph

Step-by-step explanation:

The speedometer reports speed based on the number of revolutions the tire makes in a given time period. If the motorcycle travels 28/25 times as far on each revolution, its speed is 28/25 times as great.

  (28/25)(60 mph) = 67.2 mph ≈ 67 mph

_____

The distance traveled is proportional to the circumference of the tire, which is proportional to the diameter. Hence, actual speed for a given speedometer reading is proportional to the diameter of the tire.

8 0
3 years ago
Read 2 more answers
2 or more angles are supplementary if their sum is 180°. An angle is 4 times the value of its supplement.
mr_godi [17]

Answer:

Smaller Angle : 36 degrees

Bigger Angle : 144 degrees

Step-by-step explanation:

So we can name the smaller angle x and the larger one 4x. We can add them and make the answer 180. x+4x=180, 5x=180, x=36

Smaller angle : x=36

Bigger Angle : 4x=36*4=144

7 0
3 years ago
Read 2 more answers
What is the solution to the equation 3/5(x+4/3)=1.04
Fudgin [204]

Answer:

d

Step-by-step explanation

trust me bro

8 0
2 years ago
Lancer watched 6 videos. Each video was 33.5 minutes long. How long did Perla spend watching videos? A.6 minutes B.27.5 minutes
Mumz [18]
201 minutes because 6 multiplied by 33.5 = 201 minutes

5 0
3 years ago
What is 7 divided by 2/3
soldier1979 [14.2K]

Answer:

10.5

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Which equation shows the value of -1.5 - 2.75?
    15·2 answers
  • What step do I do next ?
    11·1 answer
  • A Blimp is 400 feet in the air. There is an angle of depression of 40 degrees to a football stadium. How far is the Blimp from t
    7·1 answer
  • Two trains going in opposite directions leave at the same time. Train B travels 30 mph faster than train A. In 5 hours the train
    14·1 answer
  • What is the solution set of x^2+y^2=26 and x-y=6
    11·2 answers
  • A cubical water tank is 1.2 m long. What is the capacity of the tank in litres ?
    7·1 answer
  • Which value of p is the solution of 5p-1=2p+20​
    15·1 answer
  • The legs of a right triangle are 12 and 35 inches. What is the measure of the angle opposite the 12-inch leg?
    7·1 answer
  • Find the value of x<br> (I need help with both of them pls)
    13·1 answer
  • For every 4 hours Michelle works, she gets a 15 minute break. Which equation shows the proportional relationship between the num
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!