gyexisromero10
20.02.2020 •
Mathematics
Suppose that X is the number of hours that a computer is used in a computer lab on campus. The table below is the probability distribution for X. What is the expected value of X, that is, what is the mean its distribution?X 0 1 2 3 4Probability 0.2 0.2 0.4 0.15 0.05A. 0.8 B. 1.0 C. 1.65 D. 2
Solved
Show answers
More tips
- H Health and Medicine How to Treat Whooping Cough in Children?...
- L Leisure and Entertainment Unlocking the Secrets of Fast and Effective Tectonic Learning...
- A Animals and plants Уход за джунгариками: полезные советы и рекомендации...
- S Style and Beauty How to knit a hooded cowl?...
- S Style and Beauty How to Break in New Shoes: 7 Simple Methods...
- D Dating, Love, Relationships 10 Useful Tips on How to Survive a Breakup?...
- A Art and Culture How to Learn Screaming: Step-by-Step Guide for Beginners...
- A Art and Culture Attention, the Final Episode of Margo is Almost Here!...
- H Health and Medicine Novomin: What is it and how to use it?...
- L Leisure and Entertainment How to Land on the Moon: Your Comprehensive Guide...
Answers on questions: Mathematics
- M Mathematics Which expressions are equivalent to the one below? Check all that apply. 5 to the 3rd power times 5x...
- M Mathematics Mark 4 feet of licorle to show 3/4 on number line...
- M Mathematics Students in a science class are divided into 6 equal groups with at least 4 students in each group for a project. Identify an inequality that represents the number...
- M Mathematics A farmer with 1200 meters of fencing wants to enclose a rectangular field and then divide it into two parts with a fence parallel to one of the sides. What is the largest...
- M Mathematics Does anybody know the answer to this question f(x)=x^3-x^2-10x-8...
- M Mathematics Place the , or = symbols between the following: A) 4/3 ? 2/3 B) 4/3 ? 80% C.) 3/4 ? 65% D.) 4/8 ? 50 % Please help...
- M Mathematics PLEASE HELP ILL MARK BRAILIEST...
- M Mathematics When x=-3 plzzzz help me quick...
- M Mathematics Given I ,M ,N find the value of x...
- M Mathematics I m trying to find the explicit form of an equation after performing an integration. I m a bit rusty. ln|y| = C - cos(x) C is an arbitrary constant. Is it: y = e^(c-cos(x))...
Ответ:
Option C: E(X) = 1.65
Step-by-step explanation:
Expected value of X, E(X) = ∑XP(X)
∑ = Summation
X = number of hours
P(X) = probability of a certain number of hours
E(X) = (0*P(X=0)) + (1*P(X=1)) + (2*P(X=2)) + (3*P(X=3)) + (4*P(X=4))
E(X) = (0*0.2) + (1*0.2) + (2*0.4) + (3*0.15) + (4*0.05)
E(X) = 0 + 0.2 + 0.8 + 0.45 + 0.20 = 1.65
E(X) = 1.65 - Option C
Ответ: