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
rodikova [14]
3 years ago
9

the two way frequency table below shows data on quidditch goals blocked when a goaltender was using a luck potion or a placebo

Mathematics
1 answer:
tankabanditka [31]3 years ago
8 0

Answer:

If you want to find the percentages, you must use the equation:

P = ((total tries in where the event is true)/total tries)*100%

(if you only want the decimal form, you can not multiply it by 100% and you will get a number between 0 and 1)

ok, for placebo we have 30 + 8 = 38 tries.

the frequency where the player block the goal is: p1 = (30/38)*100% = 78.9%

the frequency in where the player don't block the goal is:

p2 = (8/38)*100% = 21%

For the luck potion we have a total of:

23 + 5 = 28 tries.

The frequency where the player did block the goal is:

p1 = (23/28)*100% = 82.1%

then the frequency where the player did not block the goal is:

p2 = (5/23)*100% = 17.9%

So we can see that, in percentage, the luck potion is more efficient.

You might be interested in
1. 25% of what is 16 2. 76 is what percent of 80
Allisa [31]
1.64
2. 95%
Hope this helps you.
6 0
2 years ago
Why is it important to be able to solve for variables in equations?
stellarik [79]
Solving for variables in equations is important for many reasons.  Of course, it's important to be able to solve for them so you can pass math tests.  But even more so, it's important for real-life applications.  There are many uses for solving equations.  They can provide answers for mathematicians, accountants, insurance companies- you name it!  There are way too many to list!  It may not seem important now, but just keep working at it!  I personally think solving equations is a ton of fun!
5 0
2 years ago
Which equation supports the given conjecture? The difference of two odd numbers is an even number. A. 23 – 19 = 4 B. 16 – 10 = 6
MissTica
Answer: <span>A. 23 – 19 = 4

23 and 19 are odd
4 is even
23-19: </span><span>difference of two odd numbers</span>
7 0
3 years ago
Lily says that (2+i)" is a complex number for every positive integer value of n. Explain how you
vfiekz [6]
Lily is not correct her answer is wrong.
3 0
2 years ago
Can someone help me with this question​
Doss [256]

Answer:

Step-by-step explanation:

For any prism or cylinder for that matter, you can find the volume by multiplying the area of the base times the height.  So this problem just becomes simple algebra.

B * h = V

25 * h = 80

h = 80/25

h = 3.2

If you don't get why it's the area of the base let me know and I can try to explain it.  

4 0
2 years ago
Other questions:
  • What decimal is equivalent to 26.4 %
    12·2 answers
  • If there are 1000 grams in a kilogram in 454 grams in a pound how many pounds are there in a kilogram?
    15·1 answer
  • How many total necklaces can Maria own?
    13·2 answers
  • What is the answer for 2n ≤ -6?
    8·1 answer
  • Christine made $60 for 5 hours of work.
    9·1 answer
  • Which number sentence has a difference of 5?<br> 8-(-3)<br> 0<br> -3-8<br> -3-(-8)<br> 3-(-8)
    13·1 answer
  • 21 cm by 18cm by 15 cm what will the total sq cm
    6·1 answer
  • I GIVE BRAINLIKLSTTT
    6·1 answer
  • 100 points
    13·1 answer
  • A group of people were asked which of three ice cream flavors they prefer. The results are shown in the table.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!