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
zvonat [6]
3 years ago
11

The lengths of plate glass parts are measured to the nearest tenth of a millimeter. The lengths are uniformly distributed with v

alues at every tenth of a millimeter starting at 590.2, and continuing through 590.8. Determine the mean and variance of the lengths. (a) mean (in tenths of millimeters) Round your answer to two decimal places (e.g. 98.76). (b) variance (in tenths of millimeters2) Round your answer to three decimal places (e.g. 98.765).
Mathematics
1 answer:
yarga [219]3 years ago
4 0

Answer:     \text{Mean length}=590.5\ mm\\\\\text{Variance of the lengths}=0.03\ mm

Step-by-step explanation:

The mean and variance of a continuous uniform distribution function with parameters m and n is given by :-

\text{Mean=}\dfrac{m+n}{2}\\\\\text{Variance}=\dfrac{(n-m)^2}{12}

Given : m=590.2\ \ \ n=590.80

\text{Then, Mean=}\dfrac{590.2+590.8}{2}=590.5\ mm\\\\\text{Variance}=\dfrac{(590.8-590.2)^2}{12}=0.03\ mm

You might be interested in
What is the 3/5 of 45?
KatRina [158]
Multiply the two values together to get 45 * 3/5 = 135/5 = 27
3 0
3 years ago
Read 2 more answers
Solve |2x- 6|&lt;10<br> O XI-2<br> O [xl-8<br> O x12
Murljashka [212]

Answer:

[xl-8

Step-by-step explanation:

6 0
3 years ago
Find the gradient of the line segment between the points (-3,3) and (4,4).
ElenaW [278]

Answer:

2.

Step-by-step explanation:

The gradient or slope of a straight line which is found between two points (x1, y1) and (x2, y2) is given by the formula:

m = (y2 - y1) / (x2 - x1)

Where y2 = 7

y1 = 3

x2 = 4

x1 = 2

=> m = (7 - 3) / (4 - 2)

m = 4 / 2 = 2

The gradient is 2.

4 0
3 years ago
In 2000, Greenville had a population of 63,205 people. Greenville’s population increased by 2500 people each year. In 2000, Spri
Llana [10]

Answer:

year 6.6025 if there is no typo in your question and numbers are right.

Step-by-step explanation:

G = 63205 + 2500x

S = 50000 + 4500x

since 9% of 50000 = 0.09(50000) = 4500

find when G = S

63205 + 2500x = 50000 + 4500x

subtract both sides by 2500x to move x terms to the right

63205 = 50000 + 2000x

subtract both sides by 50000 to move the number to the left, so we can get like terms on each side

13205 = 2000x

divide both sides by 2000

x = 6.6025

6 0
3 years ago
Mark is 11 years older than his sister. in 8 years he will be twice as old as she will be then.How old are they now
earnstyle [38]
X=Marks sister's age
x+11= Marks age
x+11 +8 = 2x+8
x+19=2x +8
x+19-x=2x-x +8
19-8=x+8-8
11=x Marks sisters age in 8 years
11-8= 3 Marks sisters age now
x+11=22 Marks age in 8 years
22-8= 14 Marks age now

6 0
3 years ago
Other questions:
  • How do I get the answer to this math problem n + 7 &lt; -3 what is the formula for the math problem
    6·1 answer
  • I'm uneducated and need help please..​
    10·2 answers
  • The line plot shows the heights of plants in an experiment, Which statement is supported by the data in the line plot? More plan
    7·1 answer
  • What is the greatest common factor for 20y^9+5y^6
    11·1 answer
  • a circular railroad-crossing sigh has a radius of 15 inches. which measurement is closest to the area of the sigh in square inch
    8·1 answer
  • Does someone knows how to solve this?<br><br>Completing the Square:<br><br>x^2-6x=15​
    14·1 answer
  • What can u round 5,201
    13·2 answers
  • Beth put $8,000 in a savings account. At the end of a year the account had earned $72 in interest. What was the yearly interest
    9·1 answer
  • 3x+1. HELP ME!!!!!! I have this question as a quiz 4 u all.
    14·2 answers
  • 18. Identify a transformation of the function f(x) = « by observing the equation of the function g(x) = x + 3.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!