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
r-ruslan [8.4K]
3 years ago
10

The weight of people in a small town in missouri is known to be normally distributed with a mean of 154 pounds and a standard de

viation of 29 pounds. on a raft that takes people across the river, a sign states, "maximum capacity 3,460 pounds or 20 persons." what is the probability that a random sample of 20 persons will exceed the weight limit of 3,460 pounds? use table 1. (round "z" value to 2 decimal places, and final answer to 4 decimal places.)
Mathematics
1 answer:
ad-work [718]3 years ago
4 0
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
z=\frac{173-154}{29}=0.655
Referring to a standard normal distribution table, and using z = 0.66, we find:
P(\bar x\ \textless \ 173)=0.7454
Therefore
P(\bar x\ \textgreater \ 173)=1-0.7454=0.2546
The answer is: 0.2546

You might be interested in
The ratio of grade 7's to grade 8's is 5:3. If there
Greeley [361]

Answer:

240 students

Step-by-step explanation:

Grade 7 : Grade 8 = 5 : 3

Number of seventh grade students = 5x

Number of Eighth grade students = 3x

3x = 90

x = 90÷3

x = 30

Total students = 5x + 3x = 8x = 8 * 30 = 240

5 0
3 years ago
Question 2
Tasya [4]

Answer:

24x+48  using the <u>distributive property.</u>

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I have 2 more questions I still need help with sorry about me keep asking questions
algol13
I can't help I don't see a question
4 0
3 years ago
Which is the side length of a cube with a volume of 1331 m3?
suter [353]
Let's remember the equation for the volume of a cube:
V= x^3 where x is the length of one side
Since a cube has equal length for length, width, and height.

Now, use what you're given
V= 1331

And put that in terms of x
x^3 = 1331

Now solve for x!
x= cube root (1331)

Think about it! cube root of 1331 * cube root of 1331 * cube root of 1331... will equal 1331 m^3!

Hope this helps
8 0
2 years ago
+(-25)negativo 25 + 30 = blanco más negativo 25 ​
Fed [463]
Itjdjdjidfjfjjfjfnhjjnm. Ikmmoojk
5 0
3 years ago
Other questions:
  • the deli in the grocery store sells each customer a cup of coffe worth $1.50 each. write a function to represent the situation.
    15·1 answer
  • Which of the following is the equation of a line that passes through the point (3,2) and is parallel to the y-axis? A. x = 2 B.
    14·2 answers
  • The menu at jestine's restaurant has side dishes and main dishes. The dishes are rice potatoes and vegetables. The main dishes a
    9·1 answer
  • Inverse variation?
    9·1 answer
  • What are the discontinuity and zero of the function f(x) = quantity x squared plus 5 x plus 4 end quantity over quantity x plus
    14·1 answer
  • Hey guys if i can get some pointers on how to do this that would be great ive been stuck on this problem for over an hour my not
    8·1 answer
  • How does interest rate affect money earned on a savings account?
    12·1 answer
  • AYOOO THIS IS A TEST. someone please help me.
    9·1 answer
  • Which equation represents the data in this function table?
    13·1 answer
  • The picture shows a collection of eight
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!