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
lukranit [14]
3 years ago
13

A researcher reports survey results by stating that the standard error of the mean is 20. The population standard deviation is 5

00.
a. How large was the sample used in this survey?
b. What is the probability that the point estimate was within ±25 of the population mean?
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
5 0

multiply 20 by 500. it should help you with the problem.

You might be interested in
Write 1.67% as a decimal. thx :)
Bas_tet [7]

Answer:

0.0167

Step-by-step explanation:

divide by 100

6 0
3 years ago
Read 2 more answers
Jessica has an account with a credit union. Her account earns 2.5% simple interest yearly. Exactly a year and a half ago, she op
Vlad [161]
<span>Ans: I = P*r*t = 900*0.023*1.5 = $31.50

I hope this help</span>
5 0
2 years ago
Jack and Jill each bought 100 pounds of cashews. Jack divided his cashews into 23 equal amounts and put them in paper bags. Jill
sladkih [1.3K]

Answer: Jack

Step-by-step explanation:

100÷2=50

50÷23=2.1739130435

50÷18=2.7777.....8

3 0
2 years ago
What is the slope of the line in the graph?<br> 4-<br> 4 5<br><br> there is a picture ^
Ivan

Answer: x+1 is the equation and the slope will be 1/1

Step-by-step explanation:

5 0
3 years ago
D= number of dollars
padilas [110]

<u>Unit rate 4:</u>

The table

d      n

4       1

8       2

16      4

<u>Unit rate 1/4:</u>

Table

d      n

1       4

4       16

16      64

and

The equation n=4d

<u>Unit rate 16:</u>

Equation:

d = 16n

Step-by-step explanation:

The unit in the unit rate is dollars per unit ounces which means that the unit rate calculated by

Unit\ rate = \frac{dollars}{ounces}

So,

The first option is the equation:

d = 16n\\\frac{d}{n} = 16

The unit rate is 16 dollars per ounce

The second option is the table:

d      n

1       4

4       16

16      64

We can take any pair of values of d and n from the table to calculate the unit rate

So taking

d = 1

n=4

Unit\ rate = \frac{d}{n}\\= \frac{1}{4}

The unit rate for table is: 1/4 dollars per ounces

Third option is the equation:

n = 4d

n = 4d

dividing both sides by n

\frac{n}{n} = \frac{4d}{n}\\1 = \frac{4d}{n}

dividing both sides by 4

\frac{1}{4} = \frac{4d}{4n}\\\frac{d}{n} = \frac{1}{4}

the unit rate is 1/4 dollars per ounce

Fourth option is the table:

d      n

4       1

8       2

16      4

We will take any pair of d and n to find the unit rate

So,

Taking

d = 4

n =1

Unit\ rate = \frac{d}{n} \\= \frac{4}{1}\\=4

The unit rate is 4 dollars per unit ounce.

Keywords: Unit rate, units

Learn more about unit rate at:

  • brainly.com/question/4550858
  • brainly.com/question/4639731

#LearnwithBrainly

7 0
2 years ago
Other questions:
  • Help please.
    10·1 answer
  • Please help me with this Solve. 6 1/3+k+3 5/6+5 1/2=26 1/6 A. 10 1/2 B. 9 1/2 C. 10 1/6 D. 11 1/2
    12·1 answer
  • 6+2&lt;5−4 and put the answer in set notation
    8·1 answer
  • 994 multiplied by 239
    14·2 answers
  • 22 What is the circumference of the circle? Use 7 for yr. 35 cm 44 cm 55 cm​
    10·1 answer
  • A dancing competition has 13 competitors, of whom four are American, two are Mexicans, four are Russians and three are Italians.
    8·1 answer
  • I need help! Greatly appreciated if you do.
    9·1 answer
  • 4. What is the slope of the graph of x – 2y = 8?
    10·1 answer
  • PLEASE HELP ME WITH THISSSSS
    13·1 answer
  • What percent of 250 is 182?​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!