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
tester [92]
4 years ago
10

Assume a binomial probability distribution with n=55 and π=0.34 . Compute the following: (Round all your z values to 2 decimal p

laces.) The mean and standard deviation of the random variable. (Round your "σ" to 4 decimal places and mean to 1 decimal place.) The probability that X is 22 or more. (Use the rounded values found above. Round your answer to 4 decimal places.) The probability that X is 14 or less. (Use the rounded values found above. Round your answer to 4 decimal places.)
Mathematics
1 answer:
Aleks04 [339]4 years ago
7 0

Answer: 0.8588

Step-by-step explanation:

Assume a binomial probability distribution with n = 40 and (symbol looks like a pie sign) = 0.55.  

Compute the following: (Round the value for standard deviation and intermediate calculations to 2 decimal places and your final answer to 4 decimal places.)  

The mean and standard deviation of the random variable.

mean = np = 40*0.55 = 22

std = sqrt(npq) = sqrt(22*0.45) = 3.1464

--------------------------------------------------  

The probability that X is 25 or greater.

P(25<= x <= 40) = 1 - binomcdf(40,0.55,24) = 0.2142

------------------------------------------------------  

The probability that X is between 15 and 25, inclusive.

P(15<= x <=25) = binomcdf(40,0.55,25)-binomcdf(40,0.55,14) = 0.8588

You might be interested in
When completing an online shopping transaction, a typical shopper takes 9 seconds to select each product and another 8 seconds t
katrin [286]

Answer:

In 26 seconds to complete a transaction, 2 products are being purchased.

Step-by-step explanation:

Here, time taken to select 1 item  = 9 seconds

Time taken in all to check out = 8 seconds

Here, time taken to shop = 26 seconds

Now as check out process takes 8 seconds , so the

Time left to ACTUALLY SHOP =  Total Time  - Time Used to check out

                                                   = 26 seconds = 8 seconds = 18 seconds

Shopping of 1 item = 8 seconds

Shopping of 2 items  = 2 x ( Time taken in 1 item) = 2 x  9 = 18 seconds

So, in 18 seconds, 2 clothing item can be selected.

Hence,in 26 seconds to complete a transaction, 2 products are being purchased.

3 0
3 years ago
What is the area of the base of a cylinder with a volume of 174π in.3 and a height of 12 inches?
nataly862011 [7]

Answer:

The area of the base is 14.5π in²

Step-by-step explanation:

The volume of a cylinder is given by

Volume =base\:area \times height

Or

V=Bh

It was given that the volume of the cylinder is 174π in³.

The height was given as 12 inches.

We substitute to get,

174π=12B

Divide both sides by 12 to get:

B=14.5π in²

Hence the area of the base is 14.5π in²

  • Hope this helps
  • Brainliest plz
  • and have a wonderful day
8 0
3 years ago
Read 2 more answers
Use the area of the rectangle to find the area of the triangle.
aivan3 [116]

Answer:

D

Step-by-step explanation:

the area of the triangle is 20. using the base of the rectangle [5] and the height of the triangle[8]. I did the same for the rectangle and got the area of  40 for the rectangle

I hope this helped :)

6 0
2 years ago
State the domain and range for the graph of the following function:
iVinArrow [24]

Answer

so whats the question?

Step-by-step explanation:

8 0
3 years ago
Which Graph shows K(4,-4)
Hatshy [7]

Answer:

option 2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • The mapping diagram shows a functional relationship.<br> Complete the statement.<br> f(3) is ___
    8·2 answers
  • Write (7 + 3i) + (6 − i) as a complex number in standard form.
    14·2 answers
  • (A) it takes 55 pounds of seed to completely plant a 9-acre field. How many pounds of seed are needed per acre?
    7·1 answer
  • The polynomial 6x2 + 37x – 60 represents an integer. Which expressions represent integer factors of 6x2 + 37x – 60 for all value
    10·2 answers
  • X=3/4 what is the answer of 12x
    10·1 answer
  • You need 1 1/4 cups sugar to make 20 cookies. To make 12 cookies, you will need how many cups of sugar?​
    10·2 answers
  • HELP PLEASE!!<br><br> k - ( - 5/6) = - 1/6
    9·1 answer
  • 1. At a bake sale, a dozen cookies sold for $4. This price was 80% of the original price. What was the original price?
    10·2 answers
  • Should I add anything? Is this good? Should I change something?
    13·2 answers
  • 36 men can compete a piece of work in 18 days in how many days will 27 men compete the same work​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!