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
V125BC [204]
3 years ago
14

The batteries produced in a manufacturing plant have a mean time to failure of 30 months, with a standard deviation of 2 months.

I select a simple random sample of 400 batteries produced in the manufacturing plant. I test each and record how long it takes for each battery to fail. I then compute that the average failure time of the 400 batteries is 29.9 months with a standard deviation of 2.15 months. In this scenario, the value 30 is:
Mathematics
1 answer:
Oduvanchick [21]3 years ago
8 0

Answer:

The population mean.

Step-by-step explanation:

29.9 is the <u>sample</u> mean.

You might be interested in
A polynomial function can be written as (x 1)(x 4)(x − 7). what are the x-intercepts of the graph of this function? (1, 0), (4,
IrinaVladis [17]
Easy

set to zero
those are the roots or xintersepts

(x+1)(x+4)(x-7)=0

x+1=0
x=-1

x+4=0
x=-4

x-7=0
x=7

xints are (-4,0) (-1,0) (7,0)
5 0
3 years ago
Read 2 more answers
Which rules has a scale factor of 5 and shifted up and to the left?
serious [3.7K]

Answer:

185 37 = 5 1; the scale factor is 5: 1. So every other linear measure is multiplied times 5. If we have the big right triangle and want to scale it down to make the smaller one, we write this: 37 185 = 1 5

Step-by-step explanation:

4 0
2 years ago
Divide. Round your answer to the nearest hundredth 1÷3
ipn [44]
Well your going to get 0.3333333333(the 3's are infinite) :D
8 0
2 years ago
Read 2 more answers
Make d the subject of the formula h=d/3+2​
Flura [38]

Answer:

3h - 6

Step-by-step explanation:

To understand better,I have attached a picture to this answer

7 0
2 years ago
Read 2 more answers
It says "find the measure of the angle indicated". The relationship is a same-side interior angle. I don't know how
weeeeeb [17]
180-50 would be 130.
The missing angle is 130 degrees
6 0
2 years ago
Other questions:
  • Jenna got 12, or 3/5, of her answers on the test right. How many questions were on the test?
    11·1 answer
  • the perimeter of a standard sized rectangular rug is 24 ft. the length is 2 ft longer than thw width. find the dimensions
    14·1 answer
  • What is |2x-3| less than or equal to 7??
    12·2 answers
  • Please find the indicated power.<br><br> (-3)2 = <br><br> (-6)4 = <br><br> (-1)8 =
    6·1 answer
  • 2. El
    12·1 answer
  • Leslie and Ben are designing a neighborhood. They want the diagonals from the center of each lot to be perpendicular to one anot
    5·1 answer
  • In the xy-coordinate plane shown below, point P has coordinates (8,-6). Which
    11·1 answer
  • Can someone pls help me with this
    10·1 answer
  • Which statement is true based on the graph ?
    10·1 answer
  • Please help meeeeeeeeeeeeeeeeeeeeeeee
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!