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
Rudik [331]
3 years ago
7

Statistic - Use the values in the contingency table to solve the equation given.

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

Step-by-step explanation:

\begin{array}{c|c|c|c}&D&E&Sum\\---&---&---&---\\A&10&20&30\\B&15&5&20\\C&30&15&45\\---&---&---&---\\Sum&55&40&95\\\end {array}\\\\\\1) P(E)=\dfrac{40}{95} =\dfrac{8}{19} \\\\2) P(B \cup D)=P(B)+P(D)-P(B \cap D)=\dfrac{20}{95} +\dfrac{55}{95} -\dfrac{15}{95} =\dfrac{60}{95} =\dfrac{12}{19} \\\\3) P(A \cap E)=\dfrac{20}{95}=\dfrac{4}{19} \\\\4) P(B | E)=\dfrac{P(B \cap E )}{P(E)} =\dfrac{\dfrac{5}{95} }{\dfrac{40}{95} } =\dfrac{5}{40}= \dfrac{1}{8} \\\\5) P(D|E)=0

You might be interested in
Explain the importance of graphs in interpreting data.
lina2011 [118]
The graph is important especially for the people who presenting something like the businessman or marketing personnel. The graphs summarizes the raw data and presents it into a diagram for the people to be easily comprehend. It allows to us to see the relationship between the variables.
3 0
3 years ago
Match the term with the definition.
maria [59]
1- Line:
A line is a one dimensional figure that is formed by joining an infinite set of points.
It has no start and no end.
Answer:
Line ..............> A) infinite number of points extending in opposite directions that has only one dimension

2- Line segment:
It is the same as the line. The only difference is that a line segment has a fixed start point and a fixed end point. It is considered to be a portion of a line
Answer:
Line segment .........> D) a part of a line that has two endpoints

3- Ray:
A ray is also a one dimensional shape. A ray usually has a start point but no end point.
Answer:
Ray .........> B) part of a line that has one endpoint and continues in one direction infinitely

4- Point:
A point is a dimensionless geometric shape. It is only used to state a certain location.
Answer:
Point .........> C) a location, has no dimension

5- Vertex:
A vertex is a term that is used to refer to the point where the two rays forming an angle meet.
Answer:
Vertex ........> E) the common endpoint of two segments or rays that form the corner of an angle

Hope this helps :)
4 0
3 years ago
An entertainment firm offers several DJ choices and light shows that range in price based on the rental time period. The DJ's co
snow_tiger [21]
From $378 (min) to $528 (max) per night
3 0
4 years ago
Read 2 more answers
Consider the graph of the function.
Zina [86]
Answer:B

looks like it has asymptotes but doesnt actually
6 0
3 years ago
What value of x will make the equation below true?<br> 5x = 12x – 28
mash [69]
X = 4
First take 12x off both sides, so -7x=-28
The negatives cancel out, so 7x=28
Not find the hcf and divide by that.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Write an inequality that describes the region of the coordinate plane not included in the graph of y&lt;5x+1
    5·1 answer
  • A rectangular picture frame measures 57 cm by 39 cm. What is the perimeter or distance around the picture frame in meters?
    14·2 answers
  • How do you express 14,100,000 in scientific notation?
    5·1 answer
  • A square has sides of length s A rectangle is 6 inches shorter and 8 inches wider than the square. Express the area of the recta
    9·1 answer
  • Tina buys 3 7/8 yards of material at the fabric store. She uses it to make a skirt. Afterward, she has 1 3/8 yards of the fabric
    7·2 answers
  • If f is a smooth function, then <br> curl(gradf) = 0 i  + 0 j  + 0 k <br> .<br> true or false
    6·1 answer
  • Find the area of the polygon
    12·1 answer
  • What number is the arrow pointing at?​
    5·2 answers
  • The 4th term of a sequence is 8 and the 6th term is 18. The sequence is either arithmetic or geometric. Which of the following c
    14·1 answer
  • The science teacher has a 1. 200 scale model of the space shuttle
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!