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
Leno4ka [110]
3 years ago
8

Assume that the weights of all packages of a certain brand of cookies are normally distributed with a mean of 32 ounces and a st

andard deviation of 0.3 ounce. find the probability that the mean weight, x¯, of a random sample of 20 packages of this brand of cookies will be between 31.8 and 31.9 ounces.

Mathematics
1 answer:
Anestetic [448]3 years ago
6 0
That probability is about 6.7%.

You might be interested in
wind turbines generate large amounts of electricity from wind energy. the blades on a wind turbine can revolve 22 times per minu
lesya [120]

Answer:

1320 times  

Step-by-step explanation:

            Time = 1 h × (60 min/1 h) = 60 min

Revolutions = 60 min × (22 rev/1 min) = 1320 rev

The blades revolve 1320 times per hour.


5 0
3 years ago
A new cell tower is being constructed and needs a guy-wire connected 180 feet up the tower and it needs to make an angle of 52°
nevsk [136]

Answer:

228.42 ft

Step-by-step explanation:

To solve for this question, we would be applying the Trigonometric function of Sine.

Sin theta = Opposite/Hypotenuse

Theta = 52°

Opposite = 180ft

Hypotenuse = Length of the wire = x

Hence:

sin 52 = 180/x

x = 180/sin 52

x = 228.42327871 ft

Approximately = 228.42 ft

6 0
3 years ago
A field is 3645 feet long.<br><br> What is the length of the field in yards?
Ilya [14]

Answer:

answer of this question is 12150

8 0
2 years ago
a crew workers paved 2/15 mile in 20 minutes. if they work at the same rate what portion of a mile will they pave in one hour?
ANEK [815]
Since 20 min is 1/3 of a mile 20 min*3=1 hour. then u multiply 2/5 by 3 to get 6/5.
6 0
3 years ago
Can someone pls help me? I’m confused!
OleMash [197]

Answer:

? = 24

Step-by-step explanation:

Pizzas = 3

Because of this, burgers must be 2

2³ = 8

Tacos = 8

8 + 8 + 8 = 24

7 0
3 years ago
Read 2 more answers
Other questions:
  • Check inequality m&gt; -2
    6·1 answer
  • Which expression is equivalent to |8|+|-7|
    10·1 answer
  • the length of a rectangle is 5 ft more than the width. The. Is 22 ft. Find the width of a rectangle.​
    15·1 answer
  • 72 divided by 4 in distributive property
    13·2 answers
  • What is the area of this shape?​
    11·1 answer
  • Which is NOT proportionate to 15/45 <br><br> 3/9<br><br> 3/15<br><br> 1/3<br><br> 30/90
    8·1 answer
  • The given sphere has a radius of 2 inch
    14·2 answers
  • in one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean
    13·1 answer
  • What are the solution's of x2-4=0
    6·1 answer
  • A group of eight people are attending the movies together.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!