Mathematics, 27.05.2020 08:01, jazz9876

HELP PLEASE!!

A multiple-choice test has 15 questions. Each question has 4 possible responses, so the
probability is 0.25 for guessing right. Suppose you randomly guess for all 15 questions.
Let X = the number of correct responses.

1. Calculate the mean of X. Interpret the mean in context.

2. Calculate the standard deviation of X. Interpret the mean in context.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:00, HTTYD

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults. how many students and adults went if the ticket charge was $42.75

Answers: 1

continue

Mathematics, 21.06.2019 18:00, keidyhernandezm

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Answers: 2

continue

Mathematics, 21.06.2019 23:30, jdenty3398

The graph of the the function f(x) is given below. find [tex]\lim_{x \to 0\zero} f(x)[/tex] [tex]\lim_{x \to 1+\oneplus} f(x)[/tex] [tex]\lim_{x \to 0-\zeroneg} f(x)[/tex]

Answers: 1

continue

Mathematics, 22.06.2019 00:00, hdwoody2002

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x, and the distance in miles, y, that he travels.

Answers: 1

continue

Do you know the correct answer?

HELP PLEASE!!

A multiple-choice test has 15 questions. Each question has 4 possible res...