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
White raven [17]
3 years ago
14

A student takes an 18 question multiple choice exam with five Choices for each question and guesses on each question. Assume the

variable
Is binomial. Find the probability of guessing at least 14 out of 18 correctly
Mathematics
1 answer:
serg [7]3 years ago
8 0
You will get 10 because if you guess you won’t get nothing if your a bad guess
You might be interested in
What is an unsecured line of credit? a. A line of credit which does not require collateral. b. A line of credit with a variable
Nesterboy [21]

Answer:

A line of credit offered to an individual with no credit history. Please select the best answer from the choices provided

Step-by-step explanation:

iI chose d becuase it was the right answer

5 0
4 years ago
Help binomial distributions
Ymorist [56]

We have the formula to compute the probability of having exactly k successed over n trials, given a probability p of success (and implicitly a probability 1-p of failure), which is


P(\text{k successed on n trials}) = \binom{n}{k}p^k(1-p)^{n-k}


Now, the probability of at least 3 successes is the union of the following event: exactly three successes,exactly four successes and exactly five successes.


We can compute their probability and sum them:\binom{5}{3}\left(\frac{3}{7}\right)^3\left(\frac{4}{7}\right)^2 + \binom{5}{4}\left(\frac{3}{7}\right)^4\left(\frac{4}{7}\right)^1 + \binom{5}{5}\left(\frac{3}{7}\right)^5 \approx 0.36788


So, the answer is about 36.79%

3 0
3 years ago
Marcos mom gave him d dollars for his allowance one week. he also earned $14.55 for his newspaper route that week. How much mone
vekshin1

Marco has ( d + 14.55 ) $

Step-by-step explanation:

Marco's mom gave him d dollars for his allowance one week.

Allowance of one week = d $

He also earned $ 1 4 . 5 5 for his newspaper route that week.

Earning of Marco by selling newspaper route that week = 14.55 $

Total earning = Allowance of one week + Earning of Marco by selling newspaper route that week

Total earning = ( d + 14.55 ) $

So Marco has ( d + 14.55 ) $

6 0
3 years ago
Read 2 more answers
A florist buys x dozen roses and y dozen carnations for a wedding. The roses cost $16 per dozen, and the carnations cost $9 per
harkovskaia [24]
16x+9y=218

Hope this helps!
4 0
4 years ago
As a salesperson, you are paid $100 per week plus $3 per sale. This week you want your pay to be at least $160. Write an inequal
Svet_ta [14]
First, you would need to create an equation for this problem. Let x represent the number of sales made. 
$100 + $3x = $160

Next, you would need to isolate the x. 

Subtract $100 from both sides. 
$3x = $60

Now, all you would need to do is divide both sides by $3. 
x = 20

You would need to make at least 20 sales. 

I hope this helps!

3 0
4 years ago
Other questions:
  • Circle V is shown. Line segment T V is a radius with length 14 feet.
    8·1 answer
  • Please helpppppppppp
    10·2 answers
  • Find the product (a*2-4b)(2a*2+b)
    11·1 answer
  • The middle school basketball team is selling t-shirts for $12.50 each to raise money for new uniforms. They have already sold 40
    8·2 answers
  • Write a paragrahs about right of citizen.​
    13·1 answer
  • HELP PLSSSSS. GUYS I NEED HELP LOL
    8·1 answer
  • −2(5d−9f)+7f−10(−9f−7d)
    8·1 answer
  • Please help I need to get this done will brainlist if right
    10·1 answer
  • Simplify the following expression: 3(2x+7) *<br> O 6x + 7<br> O 6x + 10<br> O 6x + 21<br> O 5x + 10
    6·2 answers
  • Help
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!