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
GenaCL600 [577]
3 years ago
13

The U.S. Census Bureau conducts a study to determine the time needed to complete the shortform. The Bureau surveys 200 people. T

he sample mean is 8.2 minutes. There is a knownstandard deviation of 2.2 minutes. The population distribution is assumed to be normal.Identify the following:x¯= _____σ= _____n= _____
Mathematics
1 answer:
pychu [463]3 years ago
8 0

Answer:

Step-by-step explanation:

Download docx
You might be interested in
A company that makes​ hair-care products had 4,000 people try a new shampoo. Of the 4,000 ​people, 28 had a mild allergic reacti
lyudmila [28]

Answer:

0.007%

Step-by-step explanation:

4000/28=0.007%

7 0
3 years ago
If I needed to write in this format (A U B) how would i write it
MAXImum [283]

Answer:

n(AUB)=n(A)+n(B)–n(AnB)

n(AUB)=n⁰(A)+n⁰(B)+n(AnB)

Step-by-step explanation:

This is the formula i have learned. Hope this will help u. U can use them according the question type.

7 0
3 years ago
The fraction 1/9 produces a repeating decimal 0.1 ? true or false
Likurg_2 [28]
The answer is true. 1/9 = 0.111111......
8 0
3 years ago
Read 2 more answers
A line passes through the points (1.4) and (2, 2). What is the equation of this line?
emmasim [6.3K]

Answer:

y = - 2x + 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ )  = (1, 4 ) and (x₂, y₂ ) = (2, 2 )

m = \frac{2-4}{2-1} = \frac{-2}{1} = - 2 , then

y = - 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (2, 2 ) , then

2 = - 4 + c ⇒ c = 2 + 4 = 6

y = - 2x + 6 ← equation of line

3 0
2 years ago
Read 2 more answers
What is the difference between an algebraic expression and a linear expression?
Alik [6]

Step-by-step explanation:

A mathematical phrase that groups together numbers, variables, and operators, to show the value of something is called expression.

An expression is a sentence fragment that stands for a single numerical value. On the contrary, an equation is a sentence showing equality between two expressions.

An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.

6 0
3 years ago
Other questions:
  • Can someone help me multiply this binomial?
    14·2 answers
  • What is the volume of the prism given below?
    14·2 answers
  • To find out how fast a tree grows, you can measure its trunk. A giant red oak's diameter was 248 inches in 1965. The tree's diam
    13·2 answers
  • How many years will it take for the area of the glacier to decrease to 15 square kilometers
    6·1 answer
  • A baby blue whale weighed 5520 pounds at birth. After two days, the baby weighed 5710. After 14 days, the baby weighed 8180 poun
    10·2 answers
  • Which value is an input of the function
    12·2 answers
  • 4. A
    13·1 answer
  • What is 389*1094 need help
    7·1 answer
  • Please help ASAP for brainliest!
    6·2 answers
  • Help me please 4 questions 50 points this is due today
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!