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
zlopas [31]
3 years ago
10

A test has 6 multiple choice questions, each with 4 alternatives. What is the probability of guessing 5 or more questions correc

tly?
Mathematics
1 answer:
ira [324]3 years ago
5 0

Answer:

0.0009765625‬

Step-by-step explanation:

Each multiple choice question has 4 equally likely alternatives.

Hence, probability of guessing the right answer for 1 question is \[\frac{1}{4}\] = 0.25

Hence, probability of guessing the wrong answer is \[\frac{1}{4}\] = 0.75

The probability of guessing 5 or more questions correctly = probability of guessing 5 questions correctly & 1 question wrong + probability of guessing 6 questions correctly

= \[0.25^{5}*0.75+0.25^{6}\]


= 0.000732421875 + 0.000244140625

= 0.0009765625‬

You might be interested in
What is the answer to this?
Jet001 [13]

Answer:

A. Correct

B. Correct

C. Incorrect

D. Incorrect

E. Incorrect

Step-by-step explanation:

A and B. are correct because when divided down to decimals they equal 0.5

3 0
2 years ago
Read 2 more answers
It takes one super giant pizza to feed 3 people. If you invite 35 people, how many pizza will you need?
Vilka [71]
Over 9000!!!!!!!!!!!
8 0
3 years ago
Read 2 more answers
The Great Pyramid of Giza is located in Egypt. It has a height of about 460 ft, and width of its square base is about 55ft..
svlad2 [7]

First try it out yourself then compare answers. Remember, all squares have the same length per each side.

a) 3025

b) 25300

3 0
3 years ago
Read 2 more answers
What forms of measurement of length, width, height, and distance are forms of what measurement?
Katen [24]
The length, width, and height In the most common contexts in elementary school, mathematics does not have a formal definition for these terms, nor does it have rules about "proper" use.
8 0
3 years ago
What is the solution of this equation x + 6 =24
lawyer [7]
If you are looking for x then it is X = 18
3 0
3 years ago
Read 2 more answers
Other questions:
  • How do I solve 1/3x=x-22
    5·1 answer
  • Theodore invests a total of $17,500 in two accounts paying 2% and 12% annual interest, respectively. How much was invested in ea
    15·1 answer
  • What is 602535 divisible by
    7·1 answer
  • The length of the rectangle is 5 m greater than the width. The perimeter is 150 m. Find the width and length.
    13·1 answer
  • What is the nearest 100 of 1730<br>​
    13·1 answer
  • I NEED HELP ON THIS CONSTRUCTED RESPONSE! :(
    5·1 answer
  • Which statement regarding the diagram is true?
    7·1 answer
  • Please help me, awarding brainliest to the best answer.
    10·2 answers
  • I need help with pre calculus.
    13·1 answer
  • What is the distance from point D to point C?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!