a researcher for an airline interviews all of the passengers on five random

Answers

Answer 1

Random sampling is the selection of clusters first from the community. Then the correct option is C.

What is random sampling?

Random sampling is the method of selecting the subset from the set to make a statical inference.

A researcher for an airline interviewed all of the passengers on five randomly selected flights.

Cluster sampling is a strategy in which the research splits the overall population into distinct clusters (groups).

Then random sampling is the selection of clusters first from the community.

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Related Questions

For which value of a does Limit of g(x) as x approaches alpha not exist?​

Answers

The value of a where the Limit of g(x) as x approaches alpha not exist are -1 and 1

Limit of a function

The limit of a function is the limit of a function as x tends to a value.

From the given graph, you can see that the function g(x) goes large at the point where the arrows orange and purple point down from the x-coordinates -1 and 1.

Hence the value of a where the Limit of g(x) as x approaches alpha not exist are -1 and 1

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The volume of a box is 9cm³ and its base area is 20cm². What is the height of the whole box​

Answers

Answer:

0.45 cm

Explanation:

In order to find the height of any shape given the volume and base area.

Simply divide the volume by the base area.

Here given:

Volume: 9 cm³Base area: 20 cm²

Height:

volume ÷ base area = 9 ÷ 20 = 0.45 cm

find the equaton of the line passing through the points (2,11) and (-8, -19) y= ?x ?​

Answers

Find the slope:

(-19 - 11) / (-8 - 2) = (-30/-10) = 3

Find the y intercept:

y = mx + b

11 = 3(2) + b

b= 5

So equation is:

y = 3x + 5

In two or more complete sentences, describe the transformation(s) that take place on the parent function, f(x) = log(x), to achieve the graph of g(x) = log(-2x-4) + 5

Please solve this for me!!!!

Answers

Step-by-step explanation:

Howdy there :)

To describe the transformation of the parent logarithmic function, you just need to follow these rules

1. A +  on the outside of the parentheses will mean a vertical shift upwards. As such, the transformation is moved 5 units up. If it was -, it would move 5 units down.

2. The inside of the parentheses will result in a horizontal shift right 4 units. The rule to remember is that these kinds of functions follow x(a - b) rules, meaning that when the 4 is subtracted, we are really talking about a positive four, unlike in standard arithmetic. Vice versa, a + 4 will mean a -4 four, since a - -4 is the same as a + 4. As such, we will move in the positive direction (right) on the y axis.

3. Since x is now -2x, we are reflecting about the y axis, meaning the function will switch from left to right or right to left.

4. The 2 in front of it represents a vertical dilation by a factor of 2. This is because our constant, 2, is greater than 1. If the number were in between 0 and 1, it would represent a vertical compression by the constant number.

Johnson can tile a 100 square foot floor in 7 hours. Nathan can tile the same area in 9 hours. Enter an equation that can be used to find the time in hours,t it would take Johnson and Nathan to tile a 100 square foot area together.

Answers

The equation that can be used to find the time t, in hours,  it would take Johnson and Nathan to tile a 100 square foot area together is 3.9375 hours, which approximates to 4 hours.

How are number of people to time needed to complete a task related?

More people to do a task means less time it will take.

Less people to do a task means more time it will take.

Thus, they are inversely related.

If x men take y time for a work,(assume all men have same strength)

We can define a constant as "Manpower" needed for doing that specific work.

Let we define:

Manpower needed for a work = y + y + y + .. + y = Time per man × count of men

Manpower needed for a work = xy

For this case, we're specified that:

Work in consideration = Tiling 100 sq. foot floorTime it takes by Johnson to do this work = 7 hoursTime it takes by Nathan to do this work = 9 hours

So, we see that strength of Johnson and Nathan are different.

Let the general manpower (from some frame of a general public or any third frame) needed by this work be M.

Then, Johnson delivers M manpower in 7 hours or M/7 manpower in one hour.

In the similar way, Nathan delivers M/9 manpower per hour.

Thus, if Nathan and Johnson work together, they can deliver: [tex]\dfrac{M}{9} + \dfrac{M}{7} = M\dfrac{9+7}{63} = \dfrac{16M}{63}[/tex] manpower per hour.

Let it takes them together h hours to complete the work.
That means, in 'h' hours, their together work power will accumulate to M manpower.

Or, we can say:

[tex]h \times \dfrac{16M}{63} = M\\\\h = \dfrac{63M}{16M} = \dfrac{63}{16} = 3.9375[/tex]

Thus, the equation that can be used to find the time t, in hours,  it would take Johnson and Nathan to tile a 100 square foot area together is 3.9375 hours, which approximates to 4 hours.

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2 is greater than or equal to −11

Answers

Answer:

The statement is true

Step-by-step explanation:

Positive numbers are always greater than negative numbers, so the statement would be true

This is true think about a number line -11 is far left and 2 is right. In better terms positive is always right


What is the sum of a seven-term geometric series if the first term is -2, the last term is
-31,250, and the common ratio is -5?

Answers

Answer:

-26042

Step-by-step explanation:

sum of a finite geometric series =

[tex]\frac{a_1(1-r^n)}{1-r}[/tex]

here, a1 is the first term, r is the common ratio, and n is the number of terms

a1 = -2

r = -5

n = 7

[tex]\frac{a_1(1-r^n)}{1-r} = \frac{-2(1-(-5)^7)}{1-(-5)} = -26042[/tex]

5. What is the difference between each term to the next of this number sequence: 14, 11, 8, 5? A. 3 B. 5 C. 7 D. 10​

Answers

A: 3

if you subtract 11 from 14 you get three, and the pattern is repeated and works with the other consecutive numbers

The difference between each term is A. 3. Why is this the case? 14-3=11, 11-3=8 and so on… hope this helped!

What’s the answer to this question

Answers

Answer:I guess

represent

expression

degree of 4

Identify the range of the exponential function?

Answers

Answer:

The range of an exponential function, or any function is all the possible y values the function can spit out.

In MOST exponential functions they will be x>0

I am talking about the standard form: y = a * b^x

I cannot tell you the range for YOUR exponential function without seeing it first.

Which expression is equivalent to [4(x + 9)]/ 2/3

Answers

Answer:

36+2.67

Step-by-step explanation:

I hope this is correct

Carmen has 4 baby bunnies. Each bunny weighs 1/5 of a pound. How much do the bunnies weigh all together?

Answers

Step-by-step explanation:

The answer is 0.8 as a fraction is 4/5

Rectangle ABCD is rotated by 90 degrees clockwise about the origin and
then translated 3 units left and 2 units down to form A'B'C'D'.
What is the length in units of line segment A’B’ in the resulting figure

Answers

The length in units of the line segment A'B' in the resulting figure is the same as the length of line segment AB in the previous rectangle.

Translation of shapes in the Cartesian plane

Form the task content;

It follows that the initial rectangle A is only translated and hence, the size of each of its sides remains constant.

The translation which occurs on the rectangle only shifts the whole rectangle leftward and downward and hence, each line segment in the rectangle still retains its length.

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Find the area of the trapezoid.
9 cm
9 cm
5 cm

Answers

Answer:

480

Step-by-step explanation:

9x9= 81x5= 480

480 is going to be the answer.

The radar beam sent out by an aeroplane reaches a distance of 120 kilometres and covers an angle of 150 degrees calculate the area covered by the beam
I WILL GIVE BRAINLIEST

Answers

Good luck and hope this helps

press the link and tell the answers pls

Answers

Answer:

wE NEED MORE CLARIFICATION

Step-by-step explanation:

What is the equasion
What is the link

Answer:

im passing this concept trust me answer is 34.8

Step-by-step explanation:


I need the answer urgently please !!

Answers

Answer:

y = 2x

Step-by-step explanation:

Parallel line share the same slope, therefore we can put any parallel line of y = 2 (x + 1) in equation as: y = 2x + k

As the parallel has to intercept with point (2/3, 1/3), simply put the coordinate into the equation to get value of k

2/3 = 2(1/3) + k

k = 0

Therefore the equation of this parallel line is y = 2x

slope for y=2x+3 and y intercept

Answers

Answer:

slope = 2, y-intercept = 3

Step-by-step explanation:

» Concepts

All straight lines can follow the slope-intercept form, y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept. The slope is the constant rate of change, and the y-intercept is where the line intersects at the y-axis.

» Application

We are asked to find the slope and y-intercept of the equation, y = 2x +3, given the form y = mx + b. As you can see, in the place of m (the slope), there is the number 2, making the slope 2. Then, in the place of b (the y-intercept), there is the number 3, making the y-intercept 3.

calculate the number of subsets and the number of proper subsets for the set.
{1/6, 1/7,1/8,1/9 }
A. 16;15
B.15;16
c.14;15
D.15;14

Answers

A set of n elements has 2ⁿ subsets. One of these subsets is the set itself, so this set would have 2ⁿ - 1 proper subsets.

The given set has 4 elements, so it has 2⁴ = 16 subsets and 2⁴ - 1 = 15 proper subsets.

Just to illustrate the claim, we have

• subsets of size 0 (1 of these):

{ } (empty set)

• subsets of size 1 (4 of these):

{1/6}, {1/7}, {1/8}, {1/9}

• subsets of size 2 (6 of these):

{1/6, 1/7}, {1/6, 1/8}, {1/6, 1/9}, {1/7, 1/8}, {1/7, 1/9}, {1/8, 1/9}

• subsets of size 3 (4 of these):

{1/6, 1/7, 1/8}, {1/6, 1/7, 1/9}, {1/6, 1/8, 1/9}, {1/7, 1/8, 1/9}

• subsets of size 4 (1 of these):

{1/6, 1/7, 1/8, 1/9}

and the last one is the only subset that is not a proper subset, because that subset = the set.

The number of subsets are 16 and number of  proper subsets for the set are 15. So, correct option is A.

The set {1/6, 1/7, 1/8, 1/9} has 4 elements.

To calculate the number of subsets, including both the proper and improper subsets, you can use the formula 2ⁿ, where n is the number of elements in the set.

So, for this set, there are 2⁴ = 16 subsets.

To calculate the number of proper subsets, you subtract 1 from the total number of subsets (to exclude the empty set).

So, the number of proper subsets is 16 - 1 = 15.

Hence, option A is correct, the number of subsets are 16 and number of  proper subsets for the set are 15.

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What is the volume of this shape?

Answers

Answer:
600 ft cubed
Step-by-step explanation:
Triangle volume formula V = 1/2(l*w*h)
1/2(4*12*9) = 216 ft cubed

Formula for rectangular prism V = (l*w*h)
(4*16*6) = 384 ft cubed

Adding the values: 600 ft

I NEED HELP URGENTLY

Answers

Answer:

30 square millimeters

Step-by-step explanation:

3 x 3 = 9

3 x 1 = 3

there are two sides with the area 9 therefore...

9 x 2 = 18

There are four sides with the area 3 therefore...

3 x 4 = 12

Therefore the suface area is

12 + 18 = 30

5. A square on the coordinate plane has vertices
at A(-3,0), B(1, 2), C(2,-1), and D(-2,-4). After a
dilation using a scale factor of 3, what are the
new coordinates of D'?

Answers

Answer:   (-6, -12)

Reason:

Multiply each coordinate of D(-2,-4) by the scale factor 3 to get (-6, -12)

In other words, triple each coordinate of point D.

This trick only works if the center of dilatioin is the origin.

what expression is equivelent to 4x-10/2

Answers

Answer:

4x-5

Step-by-step explanation:

math please help me ​

Answers

Answer:

1, 3

Step-by-step explanation:

1. 2.3 - 2.3 = 0

2. -3.7 + -4.1 = -7.8

3. -2.6 - (-12/4) = 0.4 = 4/10 = 2/5

4. 5/2 + (-2.5) = 0

5. 72- (-100)

   72+100 = 172

thrill drop to nearest food. Number of minutes

Answers

Elaborate more so an answer can be given….

Solve for x, then find the missing side of the lengths.

Answers

Answer:

Here are the examples!

Step-by-step explanation:

15 45 X +3 5x + 1 15 = 45 5x + 1 = 3x + 9 x+3 5x + 1 5x - 3x = 9-1 1 … 5( 5x + 1) = 45(x+3) 2x = 8 5x + 1 = 3( x + 3) x :) ...

Julie earns $14 per hour at her job. Last week she earned $336. Which equation can be used to determine the number of hours, h, that Julie worked last week.

Answers

The equation can be 336:14
The answer is 14x=336

PLEASE HELP ME! For a geometric sequence, if a1 = 2 and a5 = 1250, what is the value of r?​

Answers

Answer: r = 5

Steps:

[tex]a_n=ar^{n-1}[/tex]

1. add Values to formula

[tex]1250=2r^{5-1}[/tex]

2. get r alone

[tex]\frac{1250}{2}=\frac{2r^{4}}{2}[/tex]  ➜ [tex]625= r^4[/tex]
3. get rid of the exponents

[tex]\sqrt[4]{625}= \sqrt[4]{r^4}[/tex] ➜ [tex]\sqrt[4]{625}= r=5[/tex]

r = 5

100 POINTS!! NEED ANSWER WITH WORK ASAP!!
Coach Bennet’s high school basketball team has 14 players, consisting of six juniors and eight seniors. Coach Bennet must select three players from the team to participate in a summer basketball clinic.
How many different groups of three players are possible for Coach Bennet to select?

Answers

Answer:

See below ~

Step-by-step explanation:

This is a combination because the order in which the players are selected is not important.

Number of ways

14! / 11! 3!14 x 13 x 12 x 11! / 11! x 3 x 214 x 13 x 2364 ways

Apply combination

[tex]\\ \rm\Rrightarrow ^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]

So

[tex]\\ \rm\Rrightarrow ^{14}C_3[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{14!}{3!(14-3)!}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{14(13)(12)(11!)}{3!11!}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{14(13)(12)(11)}{6}[/tex]

[tex]\\ \rm\Rrightarrow 14(13)(2)(11)[/tex]

[tex]\\ \rm\Rrightarrow 4004[/tex]

Assume the spinner wedges are the same size. Find the probability of the spinner landing on a section that contains he number - 16​

Answers

Answer:

find the probability of rolling a 4, take the number of possible ways of rolling a 4 and divide it by the total number of possible outcomes.

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