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
postnew [5]
3 years ago
13

Analyze the table representing five experiments with an increasing number of trials. The table shows the frequency of a coin lan

ding heads up or tails up.
A 4-column table with 5 rows. Column 1 is labeled Experiment with entries 1, 2, 3, 4, 5. Column 2 is labeled Trials with entries 20, 40, 60, 80, 100. Column 3 is labeled Heads with entries 12, 25, 20, 35, 48. Column 4 is labeled Tails with entries 8, 15, 40, 45, 52.

What can you predict regarding the probability of the coin landing heads up?
A. The frequency does not change with more trials.
B. The experimental probability increases with more trials.
C. With more trials, the frequency of heads up will equal the frequency of tails up.
D. The frequency of heads up decreases with more trials.
Mathematics
2 answers:
sertanlavr [38]3 years ago
3 0

Answer:

C. With more trials, the frequency of heads up will equal the frequency of tails up.

Step-by-step explanation:

just took the test on edge

max2010maxim [7]3 years ago
3 0

Answer:

C

Step-by-step explanation:

You might be interested in
NEED HELP!!!
AnnyKZ [126]

Answer:

see explanation

Step-by-step explanation:

(1)

\frac{6}{2} = \frac{4}{p} ( cross- multiply )

6p = 8 ( divide both sides by 6 )

p = \frac{8}{6} = \frac{4}{3}

(2)

\frac{n}{4} = \frac{8}{7} ( cross- multiply )

7n = 32 ( divide both sides by 7 )

n = \frac{32}{7}

(3)

\frac{5}{3} = \frac{x}{4} ( cross- multiply )

3x = 20 ( divide both sides by 3 )

x = \frac{20}{3}

6 0
3 years ago
Translate the sentence into an equation.
11Alexandr11 [23.1K]
Twice (2 times) the difference (subtraction) of a number (y) and 7 equals 3.

2*(y-7) = 3

hope this helps :)
4 0
3 years ago
At the local nursery, 1/4 of the plants for sale are flowers and another 3/5 of them are bushes. What fraction of the plants for
Hitman42 [59]

Answer:

17/20

Step-by-step explanation:

1/4 +3/5 simplify into:

5/20 + 12/20= 17/20

5 0
2 years ago
What is the answer to this question?<br> I am confused.
olga nikolaevna [1]

Answer:

y=88 x=42

Step-by-step explanation:

Since the total measurments of one triangle have to equal 180 and one angle is already 50, and the angle on the oppisite side of the y angle is 90 the only logical number for y would be 88. Hope this helped :)

5 0
3 years ago
The gas mileage for a certain vehicle can be approximated by m=−0.05x2+3.5x−49, where x is the speed of the vehicle in mph. Dete
Whitepunk [10]

Answer:

<h2>14mph</h2>

Step-by-step explanation:

Given the gas mileage for a certain vehicle modeled by the equation m=−0.05x²+3.5x−49 where x is the speed of the vehicle in mph. In order to determine the speed(s) at which the car gets 9 mpg, we will substitute the value of m = 9 into the modeled equation and calculate x as shown;

m = −0.05x²+3.5x−49

when m= 9

9 = −0.05x²+3.5x−49

−0.05x²+3.5x−49 = 9

0.05x²-3.5x+49 = -9

Multiplying through by 100

5x²+350x−4900 = 900

Dividing through by 5;

x²+70x−980 = 180

x²+70x−980 - 180 = 0

x²+70x−1160 = 0

Using the general formula to get x;

a = 1, b = 70, c = -1160

x = -70±√70²-4(1)(-1160)/2

x = -70±√4900+4640)/2

x = -70±(√4900+4640)/2

x = -70±√9540/2

x =  -70±97.7/2

x = -70+97.7/2

x = 27.7/2

x = 13.85mph

x ≈ 14 mph

Hence, the speed(s) at which the car gets 9 mpg to the nearest mph is 14mph

4 0
3 years ago
Other questions:
  • 1)Circle 1 is centered at (−4, 5)(−4, 5) and has a radius of 2 centimeters. Circle 2 is centered at (2, 1)(2, 1) and has a radiu
    15·1 answer
  • 10 whole and 2 over 6 minus 7 whole and 3 over 6
    8·2 answers
  • What is the meaning of descending​
    7·2 answers
  • A flying squirrel's nest is 12 feet high in a tree. From its nest, the flying squirrel glides 20 feet to reach an acorn that is
    14·1 answer
  • Can you help me with my geometry
    5·2 answers
  • Chloe can type on a cell phone 3 times as fast as Megan. Chloe can type 78 words per minute How many words per minute con Megan
    8·1 answer
  • Mr. Trier charges $25 per hour for tutoring services plus a one-time fee of $15 for supplies. How many tutoring sessions(t) can
    8·1 answer
  • In AWXY, X = 700 cm, w = 710 cm and Angle W= 249. Find all possible values of Angle X, to the nearest 10th of a degree.​
    10·1 answer
  • A boat traveled 27 miles. at this rate how many miles would take in 1/2 hour
    5·1 answer
  • A library has 8,629 children's books. The librarian is ordering new shelves that each hold 1,000 books. He rounded the number of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!