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
bekas [8.4K]
3 years ago
12

Rina Flipped a coin twenty times she flipped heads 4 times and tails 16 times what is the experimental probability that Rina wil

l flip heads in her next flip?
pls answer asap and pls explain but not to much THANK U
Mathematics
1 answer:
Triss [41]3 years ago
6 0

Answer: Assuming that all of the other variables when flipping the coin is constant. The experimental probability that Rina will flip heads in her next flip is 20%.

Step-by-step explanation:

Experimental Probability is the probability solely based on the results of the previous experiments done.

In this case the results of the previous experiments is 4 times landing on heads and 16 times landing on tails.

With this info, and with the question asking for the experimental probability of heads in her next flip, we can then set up a "proportion" using the number of times experimented (20 times; because 4 heads + 16 tails = 20 total times experimented) and the number of times it actually landed on heads in the past (4 times).

The proportion should be set up with the total number of times experimented the denominator and the number of times it landed on heads as the numerator.

So, the proportion should look like this,

4/20 = ___

evaluating the expression, in terms of percentage we get 20%

You might be interested in
What is the midpoint of the line segment with endpoints ( 3.5,2.2) and (1.5,-4.8)?
Fantom [35]

Answer:

Option A) (2.5,-1.3) is correct

The midpoint of the given line segment is M=(2.5,-1.3)

Step-by-step explanation:

Given that the line segment with end points (3.5, 2.2) and (1.5, -4.8)

To find the mid point of these endpoints midpoint formula is M=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)

Let (x_1,y_1) be the point (3.5, 2.2) and (x_2, y_2) be the point (1.5, -4.8)

substituting the points in the formula

M=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)

M=\left(\frac{3.5+1.5}{2}, \frac{2.2-4.8}{2}\right)

=\left(\frac{5}{2}, \frac{-2.6}{2}\right)

=\left(2.5,-1.3\right)

Therefore M=(2.5,-1.3)

The midpoint of the given line segment is M=(2.5,-1.3)

8 0
3 years ago
If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation.
kotegsom [21]

Answer: (-9, 16]

This is the interval from -9 to 16. Exclude -9 but include 16.

=====================================================

Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

-2 < x \le 3

5(-2) < 5x \le 5(3)

-10 < 5x \le 15

-10+1 < 5x+1 \le 15+1

-9 < 5x+1 \le 16

This converts to the interval notation  (-9, 16]

note: a curved parenthesis means "do not include this value in the solution set"; while a square bracket has us include the value. So we exclude -9 and include 16.

3 0
3 years ago
Help plz ASAP
Aleks [24]

Answer:

B.

Step-by-step explanation:

3 0
2 years ago
Oliver has music lessons in Monday Wednesday and Friday.Each lesson is 3/4 of an hour Oliver says he will have lessons for three
Hoochie [10]
Oliver is incorrect because if he were correct he would learn for 2 hours and 15 minutes because, 45 minutes * 3= 2:15 minutes.
4 0
2 years ago
Factor using GCF.<br> Show your work!<br> 1) 36a + 18b - 27c
Mice21 [21]
Match them then add
5 0
2 years ago
Other questions:
  • What is 9 times 1725
    6·1 answer
  • I need help with this fast​
    11·1 answer
  • A cereal manufacturer produces cereal in boxes having a labeled weight of 15.7 ounces. Suppose that a random sample of 31 boxes
    10·1 answer
  • Help? I need answers soon!
    15·1 answer
  • Hii please help i’ll give brainliest if you give a correct answer!
    9·2 answers
  • Which expressions are equivalent to 64’1Check all that apply.
    13·1 answer
  • SOMEONE PLZZZ HELP ME THIS IS DUE IN LIKE 5 MINS (I WILL MARK BRAINLIEST)
    9·1 answer
  • Corinne is making a juice drink from pineapple juice and orange juice
    15·2 answers
  • HELP NEEDED AND GIVING EXTRA POINTS!!! 20 POINTS!
    15·2 answers
  • Please fast urgent .
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!