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
Allisa [31]
3 years ago
14

The distribution of the weights ofloaves of bread from a certain bakery follow approximately a normaldistribution. Based on a ve

ry large sample, it was found that 10percent of the loaves weighed less than 15.34 ounces, and 20percent of the loaves weighed more than 16.31 ounces. What are themean and standard deviation of the distribution of the weights ofthe loaves of bread?
A. μ = 15.82, σ =.48
B. μ = 15.82, σ =.69
C. μ = 15.87, σ =.50
D. μ = 15.93, σ =.46
E. μ = 16.00, σ =.50
Mathematics
1 answer:
slega [8]3 years ago
8 0

Answer:

D)

Step-by-step explanation:

ASSUMING NORMAL DISTRIBUTION, LESS THAN 10% AT LOWER END

OF 15.34 MEANS     [DENOTING MEAN BY M AND Standard Deviation. BY S]

M±AS=20%....................M-AS=15.34

FOR 20% LEVEL .......A=1.281........FROM TABLES

M-1.281×S=15.34............................1

SIMILARLY

M±BS=40%...................M+BS=16.31

FOR 40% LEVEL .............B=0.841...................FROM TABLES

M+0.841×S=16.31.............................2

EQN.2 - EQN.1

2.122×S=0.97

S=0.457=0.46

M=15.926= 15.93

HENCE, D IS THE ANSWER

that is D. μ = 15.93, σ =.46

You might be interested in
What is the distance , x , from the bottom of the sail to the stripe ? WORK SHOWNN!
Anon25 [30]
The answer is X = 15

3 0
2 years ago
Ricky has seven dollars and one cent.<br> How is that amount written using a dollar sign?
Mashcka [7]

Answer:

$7.01

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The table below represents a linear relationship. What is the slope of the line?
stealth61 [152]

Answer: side ways

Step-by-step explanation:

5 0
2 years ago
Express 24/40 and 18/42 in their simplest forms.Show your works
Maru [420]

Answer:

24/40 = 4/5

18/42 = 3/7

Step-by-step explanation:

Sana makatulong

7 0
2 years ago
Read 2 more answers
NEED HELP!
Citrus2011 [14]

Answer:

Michelle, because she was only 5 off, while Jae was 8 off

8 0
2 years ago
Other questions:
  • Solve the system using the addition method.<br><br> 6x - 2y = 3<br><br> 2x + 3y = -5
    9·1 answer
  • BRAINLIESTTT ASAP! PLEASE HELP ME :)
    6·1 answer
  • The pair of variables x=–3, y=8 is the solution to the equation 5x+by=17. Find the coefficient b.
    11·1 answer
  • What is the solution to 4n-6=10n?
    12·1 answer
  • Having trouble on this ixl
    5·1 answer
  • Help? which one is it
    13·1 answer
  • What is 2 3/7 X78.....???
    14·1 answer
  • The table shows the heights and the lengths of several rectangles.
    12·1 answer
  • HELP HELP HELP ME YOU'LL GET 50+ BRAINLIEST POINTS PLEASE HELP ME PLEASE PLEASE ANSWER CORRECTLY PLEASE
    9·1 answer
  • What additional information would allow you to prove the quadrilateral is a parallelogram?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!