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
prisoha [69]
2 years ago
11

Plz help me with this

Mathematics
1 answer:
hammer [34]2 years ago
7 0

Answer: mean = 3.6,  standard deviation = 3

<u>Step-by-step explanation:</u>

\text{Mean: }\dfrac{90\times 4}{100}=\dfrac{360}{100}=3.6\\\\\\\text{Standard Deviation: }\\\bullet n=100\qquad \rightarrow \text{number of students}\\\bullet p=0.9\qquad \rightarrow \text{probability of success}\\\bullet q=0.1\qquad \rightarrow \text{probability of failure}\\\\SD=\sqrt{n\times p\times q}\\.\quad =\sqrt{(100)(0.9)(0.1)}\\.\quad =\sqrt{9}\\.\quad =3

You might be interested in
Elise is going to solve the equation shown below. Which of the following statements are correct?
Helen [10]

Answer:

C. Elise should multiply both sides by 8.

Step-by-step explanation:

We need to undo what is being done to x

We are dividing x by 8, so to undo it we do the opposite.

The opposite of dividing is multiplication.

We multiply each side of the equation by 8

5 0
2 years ago
If you know the answer tell me please and if you do you would be the best
Butoxors [25]
11 ⅓ gallons.

Explanation:

Since she sold 3⅓ gallons more on Sunday than she did on Saturday, you need to add 10⅔+3⅓. ⅓+⅔=3/3, or 1. 10+3=13, and 13+1=14. She sold 14 gallons on Sunday.

On Monday, she sold 2⅔ less than she did on Sunday, so we need to do 14-2⅔. 14-2 is 12, and 12-⅔= 11⅓. This means that she sold 11⅓ gallons on Monday.

Hope this helps :)
5 0
3 years ago
Write √1694 in simplest form.<br> Please help.
belka [17]
√1694 = √121*14 = 11<span>√14

The simplest form of </span>√1694 is 11<span>√14. First, you need to find the highest number which can have a square root, and for 1694, that is 121. </span>
8 0
3 years ago
Read 2 more answers
The sides of the cubes are numbered 1 through 6. if they are both tossed, what is the probability that they will both be a 3?
Elodia [21]

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

the sides of the cubes are numbered 1 through 6,

So,

P(\text{ getting a 3})=\frac{1}{6}

if they are both tossed ,

Probability (getting that they will both be a 3) is given by

=\frac{1}{6}\times \frac{1}{6}\\\\=\frac{1}{36}

(∵\\P(\text{A and B})=P(A\cap B)=P(A).P(B)\\)

Therefore, Option 'C' is correct.

4 0
2 years ago
Read 2 more answers
Question 4 (1 point)
vampirchik [111]

Answer:

wait Q1 is what and youahveto round all of them right

3 0
3 years ago
Read 2 more answers
Other questions:
  • Document 3 The Fundamental Orders of Connecticut (1639)
    10·1 answer
  • The circumference of my circle is 45 inches. What is the diameter
    7·2 answers
  • Plz answer for 20 pts
    10·2 answers
  • What is 8 times the sum of 7 and 6
    6·2 answers
  • Solve the following system of equations by linear combination: 3x+2y=7 y=x-4
    9·2 answers
  • Circle O is shown. 2 secants intersect at a point outside of the circle to form angle 1. The first arc formed is d, and the seco
    14·2 answers
  • The graph below represents which system of inequalities?<br>​
    13·2 answers
  • In one town, there are 240 boys and 260 girls who play
    14·2 answers
  • A map has a scale of 2 inches : 12 miles. Two cities on the map are 6.5 inches apart. Find the actual distance between the two c
    9·1 answer
  • Complete the algebra terms with table and graph given y = 2x +3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!