smartgirlll1343 smartgirlll1343

17-01-2019
Mathematics

contestada

On a multiple choice test with 21 questions, each question has four possible answers, one of which is correct. for students who guess at all answers, find the standard deviation for the number of correct answers

Respuesta :

johndorceus14 johndorceus14

17-01-2019

Answer:

Hello there, the answer is 5.25, or 5 1/4

Step-by-step explanation:

Since it has 21 questions, 4 choices each, we should divide 21÷4= 5.25

Inside of fraction form, the answer is 5 1/4

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

Rutherford performed "scattering" experiments by bombarding thin gold foil with alpha particles. Which conclusion is supported by the results of his experiments

"you did it, tom," she said accisusingly. I know you didn't mean to , but you did do it

How does the author’s use of a false dilemma impact the overall argument? the employee will believe that company policies should only be followed when necessary

Part 1. Using the two functions listed below, insert numbers in place of the letters a, b, c, and d so that f(x) and g(x) are inverses. f(x)= x+a b g(x)=cx−d Pa

How many moles of N2 are need to fill a 35 L tank at standard temperature and pressure?

what must happen to form a solution?

What is the meaning of renewable as it is used in the u.s. department of energy's "guide to renewable energy"? question 1 options: able to use again and again a

How does the author’s use of a false dilemma impact the overall argument? the employee will believe that company policies should only be followed when necessary

List any 5 ways in which the potential seller interact with potential buyer to exchange goods and services

Can someone please help me with my math