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
inysia [295]
3 years ago
8

In response to the increasing weight of airline passengers, the Federal Aviation Administration in 2003 told airlines to assume

that passengers average 192 pounds in the summer, including clothing and carry-on baggage. But passengers vary, and the FAA did not specify a standard deviation. A reasonable standard deviation is 31 pounds. Weights are not Normally distributed, especially when the population includes both men and women, but they are not very non-Normal. A commuter plane carries 21 passengers. What is the approximate probability that the total weight of the passengers exceeds 4432 pounds
Mathematics
1 answer:
Rufina [12.5K]3 years ago
7 0

Answer:

The approximate probability that the total weight of the passengers exceeds 4432 pounds is 0.2709

Step-by-step explanation:

\mu = 192

\sigma = 31

No. of passengers = n = 21

We are supposed to find the approximate probability that the total weight of the passengers exceeds 4432 pounds

x = \frac{4432}{21} \sim 211

Z=\frac{x-\mu}{\sigma}\\Z=\frac{211-192}{31}

Z=0.612

refer z table

P(Z<211)=0.7291

P(Z>211)=P(Z>4432)=1-0.7291=0.2709

Hence the approximate probability that the total weight of the passengers exceeds 4432 pounds is 0.2709

You might be interested in
Which equation shows the correct use of the Distributive Property? −4(3/2x−1/2)=−15
hjlf

Answer:

x=2.833

Step-by-step explanation:

−4(3/2x−1/2)=−15

-4(3/2x)-4(-1/2)= -15

-2(3x)+2=-15

-6x=-15-2

-6x = -17

x= -17/-6

x=2.833

5 0
3 years ago
Melissa's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Melissa $ 5.95 per pound, and
olya-2409 [2.1K]
<span>B=89 lbs ANSWER: The mix contained 89 pounds of Type B coffee.
CHECK:
167lbs-89lbs=78 lbs She used 78 pounds of Type A coffee.
$4.35A+$5.70B=$846.60
$4.35(78)+$5.70(89)=$846.60
$339.30+$507.30=$846.60
$846.60=$846.60</span>
5 0
2 years ago
Read 2 more answers
Answer...........................
Usimov [2.4K]

Answer:

9.9 years

Step-by-step explanation:

A = P e ^(rt)

Where A is the amount in the account

P is the amount invested

R is the interest rate

t is the time

P = 8500

r =7% = .07

A = 17000

Substituting into the equation

17000=8500 e^(.07t)

Divide each side by 8500

17000/8500=8500/8500 e^(.07t)

2 = e^(.07t)

Take the natural log of each side

ln (2) = ln e^(.07t)

ln(2) = .07t

Divide each side by .07

ln(2)/.07 = .07t/.07

ln(2)/.07 = t

9.902102579=t

Rounding to one decimal place

9.9 years

4 0
3 years ago
Read 2 more answers
Which option correctly replaces the letters X and Y? An x will bind to the Y of an enzyme so that the chemical reaction can occu
Marysya12 [62]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
What is the first quartile
azamat
<span>The first quartile (Q1) is defined as the middle number between the smallest number and the median of the data set.</span>
8 0
3 years ago
Other questions:
  • 1
    7·2 answers
  • Kelsie sold digital cameras on her website. She bought the cameras for $65 each and included a 60% markup to get the selling pri
    14·1 answer
  • A = a is an example of which algebraic property?
    13·2 answers
  • 5+4^2÷2 simplified with work shown​
    15·1 answer
  • Write the equation of the line through (5, -4)<br><br> m=1
    6·2 answers
  • Michiko bought pens for $3.85 and pencils for $1.25 how much did she spend all together? ​
    5·1 answer
  • PLEASE HELP QUICK GIVING BRAINLIEST NANSHHXHS HELLO
    15·2 answers
  • Y= 2/3 x +7 <br> X= -4 <br> please help me asap!
    6·1 answer
  • The side lengths of a rectangle are described as (2x−3) inches and (5x+7) inches.
    14·1 answer
  • Please help, this makes no sense to me.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!