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
____ [38]
3 years ago
5

Suppose that the ages of cars driven by employees at a company are normally distributed with a mean of 8 years and a standard de

viation of 3.2 years.
What is the z-score of a car that is 9.1 years old?
Mathematics
2 answers:
choli [55]3 years ago
6 0

There follows the formula for "z-score:"

raw score - mean

z = ------------------------------

standard dev

9.1 - 8

Here, the z-score is z = ------------- = 0.344

3.2

11111nata11111 [884]3 years ago
6 0

Answer: The z-score of a car is 0.34375.

Step-by-step explanation:

Since we have given that

The ages of cars driven by employees at a company are normally distributed.

Mean = \mu = 8 years

Standard deviation = \sigma = 3.2 years

Age of car = X = 9.1 years old.

We  need to find the z-score of a car which is given by

z=\frac{X-\mu}\sigma}\\\\z=\frac{9.1-8}{3.2}\\\\z=\frac{1.1}{3.2}\\\\z=0.34375

Hence, the z-score of a car is 0.34375.

You might be interested in
T(t)T, models the daily high temperature (in Celsius) in Santiago, Chile, t days after the hottest day of the year. Here, t is e
erma4kov [3.2K]

Answer:

the answer is 262 days

Step-by-step explanation:

8 0
3 years ago
Simplify. (-2/3) - (3/5)
bija089 [108]
Common factors -10/15 -9/15
Subtract              -19/15
Your answer is -19/15
8 0
3 years ago
Read 2 more answers
Write an equation of the parabola in vertex form. <br><br>No LINKS!!!! ​
marissa [1.9K]

9514 1404 393

Answer:

  y = -16x² +180

Step-by-step explanation:

The vertex appears to be the high point of the graph, (0, 180). Then the vertex form equation is ...

  y = a(x -0)² +180

The value of 'a' can be found using the other given point. Substituting for x and y, we have ...

  164 = a(1 -0)² +180

  -16 = a

Then the complete simplified vertex form equation is ...

  y = -16x² +180

8 0
2 years ago
2d + 3 when d =8 ​<br> im stuck on this question on a paper due monday!
xeze [42]

Answer:

19

Step-by-step explanation:

2d + 3

d = 8

2(8) + 3

multiply 2 and 8

16 + 3

add 16 and 3

= 19

4 0
2 years ago
Use the Distributive Property to write each expression in expanded form.
kap26 [50]

A. 3x+21

B. 25-5x

C.8x-16

D.x^2+6x+24

7 0
3 years ago
Read 2 more answers
Other questions:
  • NEED ANSWER NOW.. PLZ HELP NEED CORRECT ANSWERS!!!!WILL MARK BRAINLIEST!!
    11·1 answer
  • Using a function on her calculator, Jamie can generate a single random digit by pressing the "Enter" key. She wants to experimen
    5·1 answer
  • Which is more, 2 1/2 pounds or 36 ounces?
    11·1 answer
  • Sena determines the remainder of 4x32−14x16+2x3−8x−1, using the remainder theorem. How does she proceed to the correct answer? D
    12·1 answer
  • Simplify. Assume that no denominator is equal to zero. (2a/a^2) ^-3
    6·1 answer
  • see I was genius in my country india website and here no one is answering me when I am in so hurry you know. I am losing marks h
    5·2 answers
  • Help ASAP please ill give brainliest
    8·1 answer
  • Is this correct? If it isn’t what’s the correct answer?
    13·2 answers
  • What is T/8 = -4 solve for T​
    7·1 answer
  • HELPPPPP?!?!??!?!?!?​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!