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
finlep [7]
3 years ago
11

Select the correct answer. x Probability 0 0.2 1 0.1 2 0.4 3 0.2 4 0.1 The probability distribution of x, a discrete random vari

able, is given in the table. What is the expected value of x? A. 0.8 B. 1.9 C. 2 D. 5
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
7 0

Answer: The option B. 1.9 is correct

Explanation:

We are given the below information:

x               Probability P(x)

0                      0.2

1                       0.1

2                      0.4

3                       0.2

4                       0.1

The expected value of x is given below:

E(x)=\sum x P(x)

         =(0 \times 0.2)+(1 \times 0.1)+(2 \times 0.4)+(3 \times 0.2)+(4 \times 0.1)

        =0+0.1+0.8+0.6+0.4

        =1.9

Therefore, the expected value of x is 1.9      



You might be interested in
How many 'faces' are on this square pyramid?​
qaws [65]

Answer:

5

Step-by-step explanation:

There are 5 faces on a square pyramid

7 0
3 years ago
what's the average temperature change in degrees Fahrenheit per hour if the temperature fell 22 degrees Fahrenheit in 10 hours
Elenna [48]
It’s 22 degrees pick the one it is right
8 0
3 years ago
Read 2 more answers
Round this number to the nearest thousand. <br> 8,336
victus00 [196]
8000 because 3 is less than 5 so you stay the same (which is 8)
4 0
3 years ago
Read 2 more answers
Can someone answers this question please master it correctly if it’s corect I will mark you brainliest
GarryVolchara [31]

Answer:

4 bowlers

Step-by-step explanation:

There are 18 different hats, 6 are bowlers

Find the unit rate: 6/18 or 1/3

1 bowler out of 3 hats

4 bowlers out of 12 hats

<h3><u><em>Hope this helps!!!</em></u></h3>

4 0
3 years ago
Read 2 more answers
What does the residual of -3 mean?
Zielflug [23.3K]

Answer:

Plz mark brainlest!

Step-by-step explanation:

Residual describes what remains after most of something is gone. It's an almost formal word for what's leftover. If you've gotten over your breakup but you still have the urge to kick your ex, then you have some residual bitterness.Residual. The vertical distance between a data point and the graph of a regression equation. The residual is positive if the data point is above the graph. Hope this helps! Ask me anything if you have any quistions!

6 0
3 years ago
Other questions:
  • HELPPPPPPPPPPPPPPPPPPP!!!
    14·1 answer
  • Find the equation of the parabola that passes through the points:<br> (0,5) (1,7) (-2,19)
    8·2 answers
  • David drove 232 miles in 4 hours and 319 miles in 5.5 hours. What is the constant rate of change?
    15·1 answer
  • How to solve ((-9)×(-5)-9)÷(-12)
    12·1 answer
  • an ornithologist studying the flight of birds measured the efficiency for parakeets flying at various speed in a descending flig
    14·1 answer
  • Math question below for question
    9·2 answers
  • Mr. Evans is paid $9.20 per hour for the first 40 hours he works in a week. He is paid 1.5 times that rate for each hour he work
    14·1 answer
  • In the year 2012, 12% of the residents of the US moved to a different residence. Suppose that several
    10·1 answer
  • Simplify 2(2x+6)+6(2x+2)+5=16x+30
    15·1 answer
  • The diagram shows FGCE is the image of ABCD under and isometry. Given BCG is a straight line, determine angle DCE
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!