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
IceJOKER [234]
3 years ago
6

PLEASE HELP! The length of time a full length movie runs from opening to credits is normally distributed with a mean of 1.9 hour

s and standard deviation of 0.3 hours. Calculate the following: A random movie is between 1.8 and 2.0 hours. A movie is longer than 2.3 hours. The length of movie that is shorter than 94% of the movies.
Mathematics
1 answer:
Jobisdone [24]3 years ago
4 0

Answer:

A random movie is between 1.8 and 2.0 hours.

z=1.8-1.9/0.3= -0.33= 0.3707

z=2.0-1.9/0.3= 0.33= 0.6293

0.6293-0.3707= 0.2586

Therefore, the chance a random movie is between 1.8 and 2.0 hours long is 0.2586.

A movie is longer than 2.3 hours.

z=2.3-1.9/0.3 =1.33 =0.9082

1-0.9082= 0.0918

Therefore, the chance a movie is longer than 2.3 hours is 0.9082.

The length of movie that is shorter than 94% of the movies

z=x-1.9/0.3= 0.94

z=x-1.9/0.3= 1-0.94= 0.06

=x-1.9/0.3= 0.06= -1.56

x= 1.432

Therefore, the length of the movie that is shorter than 94% of the movies about 1.4 hours.  

Step-by-step explanation:

You might be interested in
In the triangle below,<br> y = [ ? ] cm. Round to the<br> nearest tenth.
sattari [20]

Answer:

The answer is

<h2>12.3 cm</h2>

Step-by-step explanation:

Since the triangle is a right angled triangle we can use trigonometric ratios to find y

To find y we use cosine

cos∅ = adjacent / hypotenuse

From the question

y is the adjacent

The hypotenuse is 15

So we have

\cos(35)  =  \frac{y}{15}  \\ y = 15 \cos( 35 )  \\ y = 12.28728

We have the final answer as

<h3>12.3 cm to the nearest tenth</h3>

Hope this helps you

7 0
3 years ago
a purse contains 25p coins and 50 p coins. the total amount in the purse is rs.25. if the number of 50 p coins is double the num
erica [24]
Let the total no. of 25 p coins be x
50p coins = 2x 

Value of 25 p coins ( in rupees) = 0.25*x =0.25x
Value of 50p coins ( in rupees) = 0.5*2x = x

0.25x+x = 25
1.25x =25
x = 25/1.25 = 20

no. if 25p coins = 20
and 50p coins = 2*20 = 40

4 0
3 years ago
How are the rates 6 pounds per day and 6 days per pound difference?<br> When would each be useful
loris [4]
6 lbs per day means that every day 6 pounds are gained. 6 days per lb means that every 6 days 1 pound is gained (or lost)
4 0
3 years ago
Which rule yields the dilation of the figure JKLM centered at the origin?
Sphinxa [80]
I’d say it’s between B and D
3 0
3 years ago
Read 2 more answers
Question 2 1 pts Which statement best describes 1-14 1? Remember, absolute value is a number's distance from O, so the number wi
Dovator [93]

Answer:

  (a)  The distance from -14 to 0 on a number line. The answer is 14.

Step-by-step explanation:

If you put "-14" in the problem statement in place of the word "number," you will find it substantially matches the wording of answer choice A. |-14| means ...

  The distance from -14 to 0 on a number line. The answer is 14.

7 0
2 years ago
Other questions:
  • I think its B
    9·2 answers
  • The repeating decimal, 0.27..., is converted to the fraction 0.27..=3/x
    9·2 answers
  • Graph the line y=−3x+b if it is known that the graph goes through point:<br> b<br> B(5, 2)
    8·1 answer
  • An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20\text{ cm}d=20 cmd, equals, 20, s
    11·1 answer
  • What is 8.239 rounded to the tenths place.
    14·1 answer
  • A plumber had two pipes. The ratio of the length of the longer pipe to the shorter pipe was 9:2. When he cut 1.65m from the long
    5·1 answer
  • Factorise the equation 9x^2 - 4
    7·1 answer
  • Research indicates that the leading brand of laundry detergent accounted for 35% of the 400,000 total sales in the marketplace.
    11·1 answer
  • Please help me!!!
    7·2 answers
  • Today mr. Jackson and Mister Rios are both wearing the same time mr. Jackson repeats his ties every 12 days and Mister Rios repe
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!