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
natulia [17]
3 years ago
6

A coin is to be spun 25 times. Let x be the number of spins that result in heads (H). Consider the following rule for deciding w

hether or not the coin is fair: Judge the coin to be fair if 8 ≤ x ≤ 17. Judge the coin to be biased if either x ≤ 7 or x ≥ 18. a. What is the probability of judging the coin to be biased when it is actually fair?
Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer:

0.0433

Step-by-step explanation:

Since we have a fixed number of trials (N = 25) and the probability of getting heads is always p = 0.05, we are going to treat this as a binomial distribution.

Using a binomial probability calculator, we find that the probability of obtaining heads from 8 to 17 times is 0.9567 given that the con is fair. The probability of obtaining any other value given that the coin is fair is going to be:

1 - 0.9567 = 0.0433

Since we are going to conclude that the coin is baised if either x<8 or x>17, the probability of judging the coin to be baised when it is actually fair is 4.33%

You might be interested in
Does that look right
Tju [1.3M]

looks right to me! :)

7 0
2 years ago
Read 2 more answers
Connie started with___<br> in her saving account<br><br><br> Fill in the blank
Irina18 [472]

Answer:

Connie started with <u>$25</u> in her savings account.

Step-by-step explanation:

The y-intercept is the value of the function at time zero.

At x = 0, which is week zero, when Connie opened the account, the y value is 25. That means she opened the account with $25.

Answer: $25

3 0
3 years ago
Read 2 more answers
Write a sentence using the terms stimulus and respone
melamori03 [73]

Answer:

The dog responded to the stimulus of the ringing bell ans the response was incredibly fast.

Step-by-step explanation:

I believe you mean response repone is not a word

6 0
3 years ago
The time, t, required to drive to a certain distance varies inversely with the speed, r. if it takes 12 hours to drive the dista
kap26 [50]
T = k/R  where k is the constant of variation, T=time and R=speed.
Plug in the given values:-
12 = k/60
k = 12*60 = 720
So the equation of variation is T = 720/R

At 85 mph we have

T = 720 / 85 =  8.47 hours (answer)

8 0
3 years ago
Landon is saving up to buy a new jacket. He already has $70 and can save an additional $7 per week using money from his after sc
Alexeev081 [22]

For this case we have to:

Let "w" be the variable that represents the number of savings weeks.

We have that Landon's initial amount is $ 70.

We want to know how much money you have after 5 weeks, knowing that you save $ 7 each week, so be "y" the amount of money after "W" weeks:

y = 70 + 7w

After 5 weeks:

y = 70 + 7 (5)\\y = 70 + 35\\y = 105\

Answery = 70 + 7w\\y = 105

4 0
3 years ago
Other questions:
  • a shirt was originally priced at 65.00. the store is having a 5% off salw. how much will u pay for shirt after discount not incl
    12·1 answer
  • The median number of students in each music class is 19 people. 16,__,24,17,20,21 What should be the number in the blank?
    6·1 answer
  • Please explain this I need help
    11·1 answer
  • Divide. Express your answer in simplest form. 3/11 ÷ 4/7
    8·1 answer
  • X over 8 is greater than or equal to 1 . <br> Solve &amp; graph
    6·1 answer
  • A project manager had a taxable income of $52,150 last year. If she paid 10% of her income between $0 and $8350, 15% of her inco
    11·2 answers
  • Joe has a bag of marbles. There are 2 purple, 1 red, and 3 green marbles in the bag. Joe selects a marble, does not replace it b
    12·1 answer
  • 3(3=4)2=?<br><br><br><br> HELP PLS , i will mark you brainliest :)
    10·1 answer
  • Please help me solve these equations. Very confusing.
    12·1 answer
  • Please help will mark brainliest
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!