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
Jet001 [13]
2 years ago
8

Last summers, students who worked earned an average of $80 a week with a standard deviation of $12. What percentage of students

earned more that $104 per week?
Mathematics
1 answer:
Roman55 [17]2 years ago
5 0

Answer:

  • 2.28%

Step-by-step explanation:

<u>Given:</u>

  • μ = 80
  • σ = 12
  • x = 104

<u>Find z-score:</u>

  • z = (x - μ)/σ
  • z = (104 - 80)/12 = 2

Percent value corresponding to 2 as per z-table is 0.9772. This is corresponding to 97.72%.

<u>Percentage of students earned more than $104:</u>

  • 100 - 97.72 = 2.28
You might be interested in
Without multiplying determine the sign of the product (-468,256)(183,758).​
maxonik [38]

Answer:

negative

Step-by-step explanation:

rules:

+ + = +

- - = +

+ - = -

- + = -    ----> (-468,256)(183,758)

3 0
2 years ago
Find three consecutive integers whose sum is 96.​
levacccp [35]

Answer:

31,32,33

Step-by-step explanation:

31+32+33 = 96

7 0
3 years ago
Find the missing number to make these fractions equal.<br><br> 3/4 = ?/8
babymother [125]

The answer is 6, reaosn is because 6/8 is not simplified, so if we divide both sides by 2 (the numerator and the denominator), we can get a simplified fraction, which is 3/4. Steps: 6/8, 6 divided by 2/8 divided by 2, 3/4.

Hope this helped!

Nate

7 0
3 years ago
The National Assessment of Educational Progress (NAEP) gave a test of basic arithmetic and the ability to apply it in everyday l
mylen [45]

Answer:

a) 2.0702

b) 2.07

Step-by-step explanation:

Given:

Sample, n = 840

standard deviation, σ = 60

a) The standard deviation of the sampling distribution, will be:

= \frac{\sigma}{\sqrt{n}}

= \frac{60}{\sqrt{840}}

= 2.0702

Standard deviation of the sampling distribution is 2.0702

b) According to the 68 part of the 68-95-99.7 rule, 68% of all values of x fall within 1 standard deviation on either side of the unknown mean μ.

Therefore, missing number will be:

1 * [\frac{\sigma}{\sqrt{n}}]

= 1 * 2.0702

= 2.0702 ≈ 2.07

6 0
2 years ago
What is the answer to 23
SashulF [63]
17+6=23                that is the answer

3 0
3 years ago
Other questions:
  • Dirk opened up a savings account with $600. At a yearly interest rate of 5 percent that is compounded monthly, how much interest
    15·1 answer
  • F granola costs $2.20 per pound, how much does 0.8 pound of granola cost?
    13·2 answers
  • The formula for the volume of a cube is V(s) = s3 where s is the side length of the cube. What is the domain and range of this f
    9·2 answers
  • Pls only today only evens
    15·2 answers
  • 1. Translate: A number divided into 4 2. Translate: The sum of 2/3 and a number 3. Translate: Drew is "n" years younger than Joe
    11·1 answer
  • What is the sum of 5x^2+3x-7 and 12x+12?
    6·1 answer
  • Can you Graph Y=-2/3x+3
    15·1 answer
  • −k−(−8k+7) I'm confused, what is the answer?
    14·1 answer
  • 2 1/4 + 8/3 what is the answer
    6·2 answers
  • Can u guys help like right now
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!