Ask question

Ask question

All categories

3 years ago

12

At the beginning of a call to the cable company, a message tells customers, “After you finish talking to our customer service re

presentative, you will be asked to take a five-question survey about the level of service you received. It would be appreciated if you could please stay on the line to answer the survey questions.” What type of sampling is the cable company using? systematic random sampling voluntary sampling cluster sampling convenience sampling

2 answers:

pishuonlain [190]3 years ago

8 0

Answer:

voluntary sampling

Step-by-step explanation:

Voluntary sampling involves someone opting to be a part of the sample. In this situation, customers are given the option to stay on the line to answer a survey; this means it is on a voluntary basis. Thus it is a voluntary sample.

Bogdan [553]3 years ago

6 0

Voluntary is right. It is (B) Voluntary

You might be interested in

An isotope of iodine has a mass of 134 amu. How many neutrons does the

Nina [5.8K]

Answer:

The correct option is C: the isotope of iodine contains 81 neutrons.

Step-by-step explanation:

The mass (A) of the iodine isotope is given by:

$A = Z + N$

Where:

Z: is the number of protons

N: is the number of neutrons

For iodine Z= 53, so if A = 134 the number of neutrons is:

$N = A - Z = 134 - 53 = 81$

Therefore, the correct option is C. The isotope of iodine contains 81 neutrons.

I hope it helps you!

5 0

3 years ago

Find three consecutive numbers whose sum is 1020

krok68 [10]

what's up? the answer to this is 339+340+341

best of luck with your studies

6 0

2 years ago

Read 2 more answers

First anserw gets brainest 8th grade, root squared question

Katen [24]

Answer:

±11

11*11=121

-11*-11=121

4 0

3 years ago

A number that can be written as a fraction of two integers is called a _ _ _ _ _ _ _ _ number. It has a decimal representation t

bija089 [108]

Answer:

Rational Number

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Use the intermediate value theorem to find the value of c such that f(c) = M. f(x) = x^2 - x + 1 text( on ) [1,8]; M = 21 c =

DanielleElmas [232]

Answer:

$c = 5$

Step-by-step explanation:

Given

$f(c) = M$

$f(x) = x^2 - x + 1$

$Interval: [1,8]$

$M = 21$

Required

Find c using Intermediate Value theorem

First, check if the value of M is within the given range:

$f(x) = x^2 - x + 1$

$f(1) = 1^2 - 1 + 1$

$f(1) = 1$

$f(x) = 8^2 - 8 + 1$

$f(x) = 57$

$1 \le M \le 57$

$1 \le 21 \le 57$

M is within range.

Solving further:

We have:

$f(c) = f(x) = M$

$f(x) = 21$

Substitute 21 for f(x) in $f(x) = x^2 - x + 1$

$21 = x^2 - x + 1$

Express as quadratic function

$x^2 - x + 1 - 21 = 0$

$x^2 - x - 20 = 0$

Expand

$x^2 + 4x - 5x - 20$

$x(x+4)-5(x+4)=0$

$(x - 5)(x+4) = 0$

$x - 5 = 0$ or $x + 4= 0$

$x = 5$ or $x = -4$

The value of $x = -4$ is outside the $Interval: [1,8]$

So:

$x = 5$

$f(c) = f(x) = M$

$f(c) = f(5) = 21$

By comparison:

$c = 5$

4 0

3 years ago