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
Aleks [24]
2 years ago
8

An office manager has received a report from a consultant that includes a section on equipment replacement. The report indicates

that scanners have a service life that is normally distributed with a mean of 41 months and a standard deviation of 4 months. On the basis of this information, determine the proportion of scanners that can be expected to fail within plus or minus 6 months of the mean. (Enter your answer as a percentage without the percent sign; keep 2 decimal places)
Mathematics
1 answer:
Umnica [9.8K]2 years ago
5 0

Answer:

The answer is "36.14%"

Step-by-step explanation:

The complete question is given in the attached file please find it.

\mu =41\\\\\sigma= 4\\\\P(42

Using z-table to find the value.

\to P(41

This means that between 42 and 48 months, 36.14 % of scanners could be predicted will break down.

You might be interested in
I need help fast!!!!
Irina18 [472]
Multiply everything if not that than add
3 0
3 years ago
What number is 80% of 50
olga nikolaevna [1]
X=.8(50)
x=40
Therefore 40 is 80% of 50.
Hope this helps!
(Also the formula I used is: part = percent * whole) 
6 0
3 years ago
Simplify. (5b2−3b+2)+(2b−4) <br> A.5b2+5b+6 <br> B.5b2−5b−6 <br> C.5b2−b−2 <br> D.6b4−2
xxTIMURxx [149]

Answer:

5b2 - b -2

Step-by-step explanation:

The answer is (c)

3 0
2 years ago
Read 2 more answers
Determine the area under the standard normal curve that lies to the left of (a) Z=081. (b) Z=0.43. (c) Z= -0.33. and (d) Z= 1.04
nasty-shy [4]

Using the normal distribution, the areas to the left are given as follows:

a) 0.7910.

b) 0.6664.

c) 0.3707.

d) 0.8508.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X, and is also the area to the left of Z.

Hence:

  • The area to the left of Z = 0.81 is of 0.7910.
  • The area to the left of Z = 0.43 is of 0.6664.
  • The area to the left of Z = -0.33 is of 0.3707.
  • The area to the left of Z = 1.04 is of 0.8508.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

4 0
2 years ago
Plz answer rn nmmmm ASAP!!
notka56 [123]

Answer:

C

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Use a calculator to find the value of Tan 27o. <br> Round to four decimal places.
    8·1 answer
  • In the picture is de question
    15·1 answer
  • Explain why the square root of 49 has two possible solutions
    9·2 answers
  • (-y^5)(8y^2) and (-7^5)(9y) and (-7^5)(-5)
    12·1 answer
  • Write the equation of a line in slope intercept form that is parallel to 2X plus 4Y equals 10 and passes through the point (8,2)
    8·2 answers
  • Find the missing probability<br> P(A) = 0.8<br> P(B) = 0.05<br> P(A or B) = 0.6<br> P(A and B) =
    8·1 answer
  • What is the 110th term of -1,-3,-5,-7
    9·1 answer
  • Solve the following using factoring x²+12=7×​
    13·1 answer
  • 32) 48,504 ÷ 16
    11·1 answer
  • Jeffrey is n years old. His sister is 5 years older than Jeffrey’s age. Write an expression that represents the relationship of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!