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
DerKrebs [107]
3 years ago
5

A teacher asks her students to write down the number of hours studied, rounded to the nearest half hour. She compiles the result

s and develops the probability distribution below for a randomly selected student. What is the mean of the probability distribution?
Probability Distribution
Hours Studied: X
Probability: P(X)
0.5
0.07
1
0.2
1.5
0.46
2
0.2
2.5
0.07
Mathematics
2 answers:
irina1246 [14]3 years ago
5 0

Answer:1.50

Step-by-step explanation:None

Stels [109]3 years ago
4 0

Answer: the answer is d

Step-by-step explanation:

You might be interested in
What is 16 divided by 14.72
Bogdan [553]
16/14.72=1.08695652174
6 0
3 years ago
Read 2 more answers
Rodger bowled seven games last week. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the median of Rodger's score?
Damm [24]

Answer

The median is 155

Step-by-step explanation:

You get the numbers from least to greatest then the middle number is your median.

3 0
3 years ago
Determine the measure of each segment then indicate whether the statements are true or false
kupik [55]

Answer:

d_{AB}\ne d_{JK}

d_{AB}\ne \:d_{GH}

d_{GH}\ne \:d_{JK}

Therefore,

Option (A) is false

Option (B) is false

Option (C) is false

Step-by-step explanation:

Considering the graph

Given the vertices of the segment AB

  • A(-4, 4)
  • B(2, 5)

Finding the length of AB using the formula

d_{AB}\:=\:\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}

        =\sqrt{\left(2-\left(-4\right)\right)^2+\left(5-4\right)^2}

         =\sqrt{\left(2+4\right)^2+\left(5-4\right)^2}

         =\sqrt{6^2+1}

         =\sqrt{36+1}

        =\sqrt{37}

d_{AB}\:=\sqrt{37}

d_{AB}=6.08 units        

Given the vertices of the segment JK

  • J(2, 2)
  • K(7, 2)

From the graph, it is clear that the length of JK = 5 units

so

d_{JK}=5 units

Given the vertices of the segment GH

  • G(-5, -2)
  • H(-2, -2)

Finding the length of GH using the formula

d_{GH}\:=\:\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}

         =\sqrt{\left(-2-\left(-5\right)\right)^2+\left(-2-\left(-2\right)\right)^2}

          =\sqrt{\left(5-2\right)^2+\left(2-2\right)^2}

          =\sqrt{3^2+0}

           =\sqrt{3^2}

\mathrm{Apply\:radical\:rule\:}\sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0

d_{GH}\:=\:3 units

Thus, from the calculations, it is clear that:

d_{AB}=6.08  

d_{JK}=5

d_{GH}\:=\:3

Thus,

d_{AB}\ne d_{JK}

d_{AB}\ne \:d_{GH}

d_{GH}\ne \:d_{JK}

Therefore,

Option (A) is false

Option (B) is false

Option (C) is false

8 0
3 years ago
One third of the students at Finley high school play sports. Two fifths of the students who play sports are girls. What fraction
Cerrena [4.2K]
You would have to do 1/3x2/5 which is 2/15. So 2/15 of the girls in the school play sports. 
7 0
3 years ago
Read 2 more answers
Is the spinner described below a fair spinner? If yes, explain why. If not describe a change that could make the spinner fair
Leto [7]

Answer:

no

Step-by-step explanation:

because it's unequal

3 0
3 years ago
Other questions:
  • A color printer prints 35 pages in 11 minutes. How many pages does it print per minute?
    5·1 answer
  • PLEASE HELP FAST! I WILL MARK AS BRAINLIEST AND GIVE 20 POINTS! I NEED HELP
    8·1 answer
  • The positive integer k has exactly two positive prime factors, 3 and 7. if k has a total of 6 positive factors, including 1 and
    12·1 answer
  • Sylvia’s aunt asked her to help cut out fabric for a quilt. The figure shows the pattern of one section that is made of triangle
    9·1 answer
  • Two hundred sixty-three trillion seventy-two billion one hundred tree million eleven thousand five hundred eighty-nino numbers
    5·1 answer
  • How many times does 4 go into 56
    7·2 answers
  • Estimate the equation of the line of best fit for the following graphs.
    12·1 answer
  • Pls help pls help do anything u want ,but pls help
    6·1 answer
  • Find the slope intercept form 5x-3y=27
    7·2 answers
  • 1. A restaurant charges $10 for each burrito, and a $5 delivery fee. Write an expression to represent the total cost to have x b
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!