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
OlgaM077 [116]
3 years ago
7

What is the probability that she gets exactly 4 or exactly 5 questions right?

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0
Probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3  which equals  0.0577
You might be interested in
What is 123% of $938.55?<br><br> Round your answer to the nearest cent
ollegr [7]

Answer:

1154.41 (rounded)

Step-by-step explanation:

8 0
3 years ago
On a test spencer got 1/8 of the problems worng . which set best represents the ones he got worng
GrogVix [38]
B I think lol hfrhbffgg
4 0
3 years ago
Read 2 more answers
What is the answer to this question
mylen [45]

Answer:

i think it is....

1

0

-1

-2

-3

sorry if im wrong mark brainliest if righ

5 0
3 years ago
When a number is decreased by 43%, the result is 20. What is the original number
HACTEHA [7]

Answer:

idk

Step-by-step explanation:

because i said so.

8 0
3 years ago
Read 2 more answers
What numbers go in the blank!?!
Inessa [10]
16 is the correct anwser
7 0
3 years ago
Other questions:
  • Please answer each sections thanks
    14·2 answers
  • he newly elected president needs to decide the remaining 3 spots available in the cabinet he/she is appointing. If there are 14
    14·1 answer
  • Pls help! i got A is that correct?
    9·2 answers
  • I don't understand this,can somebody explain this.
    11·1 answer
  • Create an exponential function that models this situation based on the time in secons in the video.
    11·1 answer
  • What is the silution
    5·1 answer
  • If the area of a circle is 33.02 cm squared what is the radius
    9·2 answers
  • NNNNNNNNEEEEEEEEEEDDDDDD help
    12·1 answer
  • PLEASE HELP!!!! I NEED HELP ON MY MATH TEST.
    8·1 answer
  • Libreng points sagot na kayo hehehehe <br>boy​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!