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
7nadin3 [17]
3 years ago
9

An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 120 lb and

161 lb. The new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb.
a)If a pilot is randomly​ selected, find the probability that his weight is between 120 lb and 161 lb.The probability is approximately?

b. If 36 different pilots are randomly​ selected, find the probability that their mean weight is between 120 lb and 161 lb. The probability is approximately?

c. When redesigning the ejection​ seat, which probability is more​ relevant? . Part​ (b) because the seat performance for a single pilot is more important. B. Part​ (b) because the seat performance for a sample of pilots is more important. C. Part​ (a) because the seat performance for a sample of pilots is more important. D. Part​ (a) because the seat performance for a single pilot is more important.
Mathematics
1 answer:
aniked [119]3 years ago
6 0
I think the answer is c
You might be interested in
From the intersection for the following sets.
zaharov [31]
Since x is intersecting y, it will be XnY =(0, 10)
3 0
3 years ago
Jen has 1 chocolate bar she is sharing with her friend, Joe. Jen takes 2/3 of Joe’s piece. What’s Joe’s current piece?
lana66690 [7]

Answer:1/3

Step-by-step explanation:

If Jen has 1 chocolate bar means that he has 3/3 whole .If he gives 2/3 then he will be left with 1/3 part of the chocolate bar.

3 0
2 years ago
What is the answer for 2 3/7 + 3 2/7 in a mixed fraction
S_A_V [24]

Answer: 5 5/7

Step-by-step explanation:

3+2 = 5

You then look at you fractions. They both have the same denominator so we go ahead and add the two together.

3/7 + 2/7 = 5/7

Your final answer is 5 5/7

5 0
3 years ago
Read 2 more answers
Rewrite the equation below so that it does not have fractions.
Ray Of Light [21]

Answer:

x=17/14

Step-by-step explanation:

(7/9)x+2=(5/6)

18 is the least common multiple between 9 and 6, so we can multiply each fraction by 18.

7           18              126

----   *    ------   =     --------    =     14

9            1                9

14x+2=(5/6)

5            18             90

----     *   ------    =   ---------     =     15

6             1                6

14x+2=15

<u>      +2 +2</u>

14x=17

x=17/14

Hope this helps!

8 0
3 years ago
Is there a relationship between the distance and the sum? Is there a relationship between the distance and the difference? A 5-c
kifflom [539]

Answer:.

bk  k kkuhvljhbj sjc wkjhc wjdcbouhwbcuhdwbchudbvbradleydbhudeuyuywcwcywcuvwucudcdc

Step-by-step explanation:

k

3 1
3 years ago
Other questions:
  • The equation I wrote was F=9/5C+32 Rearrange the equation and solve for C
    15·1 answer
  • Write an expression to represent: Nine minus the quotient of two and a number x.
    10·2 answers
  • If -2x+xy=30 and y=8,then what is the value of x?
    7·2 answers
  • Write and solve the following problem-<br> 4(x-9)-2x=-3x+14
    14·1 answer
  • Triangle Q R S is shown. Angle Q R S is 100 degrees. The length of Q R is 2.4 and the length of Q S is 3.5. Law of sines: StartF
    9·2 answers
  • Calculate simple interest
    7·1 answer
  • PLEASE HELP ME!
    12·1 answer
  • I need help with #5 please
    9·2 answers
  • Which matrix equation can be used to solve the system?<br> (2x+ 5y = 15<br> X + 3y = 18
    8·2 answers
  • ANSWER ASAP GIVING BRAINLIEST FIVE STARS AND A HEART I ONLY NEED A FEW SENTENCES!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!