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
tresset_1 [31]
3 years ago
7

What is the sampling method used in the following scenario? The marketing manager for an electronics chain store wants informati

on about the ages of its customers. Over the next two weeks, at each store location, 100 randomly selected customers are given questionnaires to fill out asking for information about age, as well as about other variables of interest.
Mathematics
1 answer:
IRISSAK [1]3 years ago
3 0

Answer:

Step-by-step explanation:

The method applied in this scenario is called simple random sampling. A sample of 100 customers is chosen from a larger population of customers and each customer has the same chance of being selected for the survey at any given time. Also, the chance of selecting 100 customers from each store is the same during the sampling process. The order of sampling at each store does not follow a certain order, thus, It is different from systematic random sampling.

You might be interested in
A piece if wire 40cm is bent to form a right angled triangle whose hypotenuse is 17cm long find the other two sides of triangle
hjlf

Answer: 150mm

Step-by-step explanation:

Take the two adjecent sides of the triangle to be x and y and X is the angle opposite the side, x.

From the trigonometric identities for a right-angled triangle, it is known that

x=170sin X and;

y=170cos X

Thus the perimeter of the triangle is given by

170sin X + 170cos X + 170 = 400

170(sin X + cos X) = 400 - 170

170(sin X + cos X) = 230

sin X + cos X = 230/170 = 1.3529

Squaring both sides hence,

sin^2(X) + 2sin X.cos X + cos^2(X) = 1.8304

Recall that sin^2(X) + cos^2(X) = 1 and 2sin X.cos X = sin 2X.

Thus, the former expression gives;

1 + sin 2X = 1.8304

sin 2X = 0.8304

2X = arcsin (0.8304)

2X = 56.14° or (180 - 56.14)° = 56.14° or 123.86° for X existing within a triangle.

X = 56.14/2 or 123.86/2

X = 28.07° or 61.93°

Thus the two adjacent sides are ;

x = 170 sin (28.07) = 80mm

y = 170 cos (28.07) = 150mm

Using the value of 61.93° as X would give the same values but interchanged for x and y.

I hope you find this useful.

5 0
3 years ago
Find the circumference of the pizza to the nearest tenth. Pizza : 10 inches
Eddi Din [679]

Answer:

31.4 in

Step-by-step explanation:

I must assume that you meant "10-inch pizza," which implies a diameter of 10 inches.  The formula for the circumference of a circle when the diameter is known is C = πd , so here:

C = π(10 in) = 10π in, or roughly 31.4 in.

5 0
3 years ago
Find the radius of the cylinder when volume is 304 cm^3 and height is 10 cm
aleksandr82 [10.1K]

Answer:

<h2>3.11 cm</h2>

solution,

Volume of cylinder=304 cm^3

height=10 cm

Radius=?

Now,

volume = \pi  {r}^{2} h \\ or \: 304 = 3.14 \times  {r}^{2}  \times 10 \\ or \: 304 = 31.4 \times  {r}^{2}  \\ or \:  {r}^{2}  =  \frac{304}{31.4}  \\ or \:  {r}^{2}  = 9.68 \\ or \: r =   \sqrt{9.68}  \\ or \: r =  \sqrt{ {(3.11)}^{2} }  \\ r = 3.11 \: cm

Hope this helps..

Good luck on your assignment..

7 0
3 years ago
What information can be used to compare linear relationships?
anygoal [31]
<span>Line graphs are used to display data or information that changes continuously over time. hope that helped</span>
7 0
3 years ago
Read 2 more answers
Pls help 20 points if u answer
yarga [219]
I have absolutely no idea i hate math so much
3 0
3 years ago
Other questions:
  • Help!!
    13·2 answers
  • 12.391/3.8 to the nearest whole number
    12·2 answers
  • WILLGIVE A BRAINLEST!!!!
    10·1 answer
  • What is (-3, -14) and (0, -9) written in slope intercept form? Thank you!
    13·2 answers
  • 0.8 -0.50 3 with solution​
    5·2 answers
  • Please give the right answer
    15·1 answer
  • Which pairs of expressions are equivalent <br><br> More the 1 answer
    13·1 answer
  • If g(x)=f(x)−1, then g(x) translates the function f(x) 1 unit _[blank]_. Which word correctly fills in the blank in the previous
    12·1 answer
  • 9. Your friend claims that you can prove that two parallelograms are congruent
    6·1 answer
  • I need help with a math equation
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!