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
aniked [119]
3 years ago
11

Beatriz takes a simple random sample of 350350350 orders from the more than 500050005000 total orders to her store and finds tha

t 12\, percent of the sampled orders were returned. Assuming that it is really 9\%9%9, percent of all orders to her store which were returned, what is the approximate probability that more than 12\, percent of the sampled orders would have been returned
Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

0.02493

Step-by-step explanation:

We are to Find :

P(p > 0.12) ;

This is equivalent to:

1 - P(p ≤ 0.12)

Using the relation :

1 - P((p - po) / (√(po(1 -po)) / n))

1 -P((Z ≤0.12 -0.09) / (√(0.09(1 -0.09)) / 350))

1 -P((Z≤0.03 / (√(0.09(0.91))/350))

1 - P((Z≤0.03 / 0.0152970))

1 - P((Z≤1.96116)

1 - 0.97507 (from Z probability calculator)

= 0.02493

You might be interested in
Re-write the quadratic function below in Standard Form<br> y = -7(2x + 3)(x - 2)
earnstyle [38]

Answer:

-14x² + 7x + 42

Step-by-step explanation:

(2x + 3)(x - 2) = 2x² - 4x + 3x - 6  =  2x² - x - 6

-7(2x² - x - 6) = -14x² + 7x + 42

6 0
3 years ago
A bag contains green marbles and red marbles,33 in total.The number of green marbles is 9 more than 3 times the red marbles.How
andriy [413]

Answer:

25 Green Marbles

Step-by-step explanation:

33 - 9(green) = 24

24 / 3 = 8

33 - 8 = 25

6 0
4 years ago
Question 2 (Essay Worth 10 points)
Strike441 [17]

Answer:

(a) f(2) = 81

(b) g(2) = 83

(c) Test average for maths class after test 2 is greater

Step-by-step explanation:

Given

f(x) = 0.5x + 80

x \to g(x)

1 \to 81

2 \to 83

3 \to 85

Solving (a): f(2)

We have:

f(x) = 0.5x + 80

f(2) = 0.5*2+80

f(2) = 1 + 80

f(2) = 81

Solving (b): g(2)

From the table:

g(x) = 83 when x = 2

So:

g(2) = 83

Solving (c): Which is greater f(2) or g(2)

In (a) and (b),

f(2) = 81

g(2) = 83

Hence, test average for maths class is greater

7 0
3 years ago
What's two ways that are alike for the like fractions
aleksandrvk [35]
I don't understand your question, you used improper use of words, but I think the answer is the denominator and numerator 
5 0
4 years ago
Can someone hurry help me
Dmitriy789 [7]

Answer:

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable). Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.As we have seen in examples above, we can represent a function using a graph. Graphs display many input-output pairs in a small space. ... The most common graphs name the input value x and the output value y , and we say y is a function of x , or y=f(x) y = f ( x ) when the function is named f .

Step-by-step explanation:

Brainlist will be very accept if you want took me a while to do :)

7 0
4 years ago
Other questions:
  • Help me, someone, I really need it
    5·2 answers
  • What is the benchmark number when showing a way to count from 170-410?
    5·1 answer
  • 8 times a number increased by 5 is the same as 17 more than 6 times the number
    13·1 answer
  • Mario paid $44.25 in taxi fare from the hotel to the airport. the cab charged $2.25 for the first mile plus $3.50 for each addit
    11·2 answers
  • The question is
    9·1 answer
  • Please help me, circle chapter. ​
    9·1 answer
  • Which expression is the factored equivalent of x2 - 5x + 4?
    13·1 answer
  • 2. Find the unit rate demonstrated in the graph<br> below.
    13·1 answer
  • Find the distance.<br><br> a. 9.7<br> b. 11.7 <br> c. 10.7 <br> d. 12.7
    10·1 answer
  • Kayden is the youngest of four siblings whose ages are consecutive integers. if the sum of their ages is 90, find kayden's age.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!