marygailbowen7711 marygailbowen7711
  • 18-12-2020
  • Mathematics
contestada

A quiz consists of 920 true or false questions. If the student guesses on each question, what is the mean number of correct answers

Respuesta :

ogorwyne
ogorwyne ogorwyne
  • 19-12-2020

Answer:

460

Step-by-step explanation:

This quiz is Said to consist of 920 questions. Each if these questions have 2 options of answering them only. Which is True or False.

True represents correct = 0.5

False represents wrong = 0.5

The probability of correct is = 0.5

With a sample size of 920

Mean = no

= 920x0.5

= 460

So the mean number of correct answer from this calculations I just did is equal to 460

Answer Link

Otras preguntas

Write the vector in component form.
Which song was written by John Lennon in response to a drug trip experience told to him by Peter Fonda? Group of answer choices "Strawberry Fields Forever" "She
Coffee sales are expected to double on Friday. Using Monday sales as a basis, how many cups should Madcup have ready for the Friday coffee sales? Show your work
why mesophyll cell is considered as parenchyma cell​
7(3w-3)=-12 HURRY PLEASE
The hypotenuse of a right triangle is 6 cm and one side is 2 cm longer than the other side. Find the length of each side to one decimal place.
John took 45 minutes to bicycle to his grandmother's house, a total of 4 kilometers. what was his speed in km/hr? What are you solving for? What’s the equation
the velocity of a body is increases from 10 m/s ti 15 m/s in 5seconds calculate its acceleration​
Help me pleases…………………
Why is free press a cornerstone of a democratic society