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
Alexandra [31]
3 years ago
13

A coin is tossed 72 times. What is a reasonable prediction for the number of

Mathematics
1 answer:
Aneli [31]3 years ago
4 0

Answer :

That’s it, the probability of getting tail on a single coin toss times the number of observations.

In this case, 1/2 * 72 = 36

However, there’s something called chance error. How much do you expect the result to differ from the expected value? It can be calculated as follows:

The Standard Deviation of this experiment is  √(0.5)(0.5) =0.5

The Standard Error is  √72 (0.5) ≈ 4.18330 round to the nearst tenth is 4

So, the expected value is 36, give or take 4.

And since the number of tails in a toss coin experiment is normally distributed, then you can expect the number of tails to be between -2 and +2 SEs from the expected value 95% of the time.

In other words, if you repeat this experiment a large number of times, you can expect to obtain between 27 and 43 tails 95% of the time.

Hope this helps

You might be interested in
How many positive integers less than 250 are multiples of 5, but not multiples of 10?
SashulF [63]

Answer:

Step-by-step explanations: sometimes 5 times (number) is 250 but in this case your teacher did not tell you to multiply it by 10 but instead multiplying it by 5

8 0
3 years ago
Read 2 more answers
15 inches and 8 feet in the simplest form
aivan3 [116]
9ft n 3 inches , because 12 inches is a feet ! if you know then you know
5 0
3 years ago
Please help me please
kobusy [5.1K]
Terrell ran 1,000 meters more than Victor. That's the answer because if you know 1 kilometer = 1,000 meters than do 3 kilometers times 1 kilometer = 3,000 meters. Than do 4,000 meters -3,000 meters  to get 1,000 meters. so the answer is Terrell ran 1,000 meters more than Victor. 
7 0
3 years ago
5t=24.5 what does t represent
Inessa [10]
Divide both sides by 5 to get t by itself, then you have your answer
4 0
3 years ago
Read 2 more answers
You need to split it in half then multply then add
Harrizon [31]

Answer:

130^2 or 130 meters squared

Step-by-step explanation:

I decomposed the figure, then found the area of the decomposed figures then found the sum of them.

FIGURE A:

3 x 3 = 9

= 9^2

FIGURE B:

11 x 11 = 121

= 121 meters^2

So 121 + 9 = 130

= 130 meters^2

REMEMBER!!!!

THE FORMULA FOR AREA IS LENGTH * WIDTH = AREA

8 0
3 years ago
Other questions:
  • Which of the points below satisfies the inequality in the box? check all that apply. y>= -3x+2
    6·1 answer
  • Suppose a fair die is rolled eight times. find numerical values for the expectation
    14·1 answer
  • R varies directly as s. Find r when s=10 and k=4
    12·2 answers
  • If f(x)=x2-2x-8 and g(x)=1/4x-1 for which value of x is f(x)=g(x)
    14·1 answer
  • Help me please give brainiest
    8·1 answer
  • T B'(4, -8) was transformed using the translation (x - 2, y + 3). What were the coordinates of B?
    14·1 answer
  • A die is loaded so that the number 6 comes up three times as often as any other number. what is the probability of rolling a 1 o
    11·1 answer
  • What is the square root of 144
    7·2 answers
  • If a right triangle is rotated around the longest leg what three-dimensional figure is formed
    8·1 answer
  • What is the solution to the equation 4x-6=10x-3?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!