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
Stolb23 [73]
4 years ago
8

A coin is to be tossed 36 times what are the mean and standard deviation of the number of heads

Mathematics
1 answer:
viva [34]4 years ago
3 0

Answer:

Binomial distribution,

n = 36 independent events,

p = 0.5 probability of success and of failure, as 1-p = p.

Mean of binomial distribution is np=18.

Variance is np(1-p)=9

Standard deviation is sqrt(variance)=3.

You might be interested in
Han made some hot chocolate by mixing 4 cups of milk with 6 tablespoons of cocoa. A. How many tablespoons of cocoa per cup of mi
MaRussiya [10]

Answer: 1.5

Step-by-step explanation: you have to divide 6 by 4 and you get 1.5

3 0
2 years ago
Can you help me out it would be much appreciate thank you
brilliants [131]

Answer:

The answer to the question is 50.28 feet²

Step-by-step explanation:

Here, is why the answer to the problem is 13.72!

The area of the shaded region is:-

Area of total region - Area of the circular region

Area of total region is 8² so it is 64 feet²

Area of Circular region formula is πr²

Substitute the values, for the formula and it is π4² = 22/7 × 16

                                                                         → 352/7

                                                                        ⇒ 13.72 Feet²

Therefore, the area of the shaded region is 13.72 Feet²

(Now, we subtract the two values)

64 - 13.72

⇒ 50.28 Feet²

I hope this answer helps!

7 0
3 years ago
Curtis paid $80 on the vet bill for his dog. Then the vet charged him $40 more for his dog's medicine. If he now owes the vet $1
Klio2033 [76]

Answer:

He paid 80 at the start, so his starting must have been 80

Step-by-step explanation:

80+40=120...

so either 0, or 80 because he owed nothing, or he owed the 80, then the 40 for medication

I hope this helps!

8 0
3 years ago
Read 2 more answers
Is the world hiding submarines in the ocean?
snow_lady [41]

Answer:

possibly china, but not confirmed.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I need help pls I would appreciate it
KengaRu [80]
1.) D
2.) D
3.) C
4.) C
5.) 56 and 90 I looked for the pattern and followed it.
Get someone else to do 6 I cant
6 0
3 years ago
Other questions:
  • A school principal ordered 1000 pencils ha gave an equal number to each of 7 teachers until he had given as many as possible
    8·1 answer
  • -r(3r^{2}+1)r=4 the 2 is to the power
    8·1 answer
  • Which expressions are equivalent to the expression...
    7·1 answer
  • -8•f(10)+4•g(-8)<br><br> This is from khan Academy
    7·1 answer
  • 4. Khup bought three cans of soda for $0.95 each. She paid
    12·1 answer
  • A pillar 4 feet tall casts a shadow 2 feet long on the ground. If the pillar was 14 feet tall, how many feet in length would the
    8·2 answers
  • Find the coordinates of the midpoint of line segment lb if l (8, 5) and b (-6, 2).
    8·1 answer
  • F(x) = -x^2 + 5x – 2<br> Find f(-4)
    7·1 answer
  • Jackie bought a 3-pack of tubes of glue. She used 0.27 ounce of the glue from the 3-pack
    14·2 answers
  • What is the equation of the graph below?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!