Determine whether each sample may be biased. Explain.

5. Rickie surveys people at an amusement park to find out the average size of people's immediate family

6. Theo surveys every fourth person entering a grocery store to find out the average number of pets in people's homes.

7. A biologist estimates that there are 1,800 fish in a quarry. To test this estimate, a student caught 150 fish from the quarry, tagged them, and released them. A few days later, the student caught 50 fish and noted that 4 were tagged. Determine whether the biologist's estimate is likely to be accurate.

Answers

Answer 1

Answer:

5: yes he could easily chose bigger looking families to get the result he wants

6: no he has isn't choosing people and has no idea the answers presumibly

7: no it's not something that they could choose or know what is going to happen, therefore or can't be biased.

I'm not sure if I did it right but I think that's what it's asking sorry if I'm wrong


Related Questions

hey besties can someone help em with this

Answers

9/13, there are 13 altogether because 9+4=13 and there are 9 cars
9/13, I took that test

A messenger is sent to a town and advances daily by twenty miles. In how many days will another messenger, sent five days later and advancing daily by thirty miles, overtake him?

Answers

Answer:

don't know

Step-by-step explanation:

It will take 10 days to over take him Step-by-step explanation:

halp me pleas :|.........

Answers

A for sure and possibly D
I’m pretty sure it’s A

Take your time. I need this by tomorow.

Answers

J. The answer is 102

The following table shows the final scores for a group of mini golf reset adventure Land find the median number of strokes

Answers

The median would be the middle data point. Let’s list the points

25, 26, 31, 39, 32, 57

Put them in order from least to greatest

25, 26, 31, 32, 39, 57

There is an even amount of data so take the two center points and divide by 2

31 + 32 = 63

Divide by 2

31.5

There would be an average of 31.5 strokes
31.5 strokes is the answer

Circles - Radius, Diameter, Area and Circumference

Answers

Answer:

Hello! answer: 452.16

Step-by-step explanation:

Im using 3.14 for pi

the radius is just half of the diameter so...

72 × 2 = 144 144 × 3.14 = 452.16 therefore the distance around the Ferris wheel is 452.16 Hope this helps.

Answer is 452.16 just took the quiz luv

4) Find the volume of the pyramid.

Answers

Answer:

672

Step-by-step explanation:

12 * 12 = 144

144* 14 = 2016

2016 / 3 = 672.

672

12 times 12 divided by 3=48

48 times 14=672

no links pls just answer the question direct.

Answers

Formula:

(3.14)r^2

Larger one:

(3.14)(3)^2

28.26 * 13

367.38 in^2

Smaller one:

(3.14)(3)^2

28.26 * 8

226.08 in^2

Find the Area of the figure below, composed of a rectangle and two semicircles.
Round to the nearest tenths place.

Answers

Pretty sure its 68.6
The answer is definitely 68.6

(BRAINLIEST) What is the solution to this system of equations?

Answers

Answer:

I believe the answer is (2,4)

Answer:

Well, it's one solution.

Step-by-step explanation:

The reason it's one solution is because the two lines cross over and intersect at one point.

Can somebody help me? I need helpp!!!

Answers

independent is the x dependent is the y
independent- time
dependent- total number of knee bends

If x stands for time, y stands for total # of knee bands.

independent variable:

x

dependent variable:

y

please help its very easy for the people who know how to do this stuff!


Write a word problem to match the algebraic expression n + 6.

Answers

Answer:

A certain number is added to 6

Add a random number to 6

Enter an algebraic expression that represents eight less than the sum of v cubed and sixty-four.

Answers

Answer:

8 - v³ + 64

Step-by-step explanation:

Eight less than = a subtraction sign "8 -"

The sum of v cubed and sixty-four = v³ + 64

Hope this helps!

Answer:

[tex]8 - v^{3} + 64[/tex]

Step-by-step explanation:

"Less" = minus

"Cubed" = 3

You are adding v^3 to 64, but subtracting that from 8

Plz help thanks no links
You work on a problem calculating either area or volume. Your answer is 210 ft3. Did you work on an area or volume problem?

Answers

Answer:

A volume problem.

Step-by-step explanation:

An area problem would be 210 ft2 because you multiply two numbers but with volume you multiply three.

Have a wonderful day! :)

Answer:

sheeeeeeeeeeeeeeeeesh xD

have a good day :)

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAILIEST!!!!!!

Please answer all 4 questions... and no links!!
Thanks!!!!!!!!!!!!

Answers

•ω• Hewo fren!

☆☆●◉✿ Answer:✿◉●☆☆

1.) [B] 20m.

2.) [A] 36cm.

3.) [D] 30cm.

4.) [C] 45cm.

HAVE A GUD DAY!  ∧∧

→⇒brainliest for other person please? ☆(UΔU )♥♥︎

Help asap please

Tirado hired a Belle Glade company to perform regular maintenance on his boats. The amount
Tirado pays can be modeled by the equation y = 50x + 1850, where y represents the total cost
and x represents the number of boats serviced. Which of the following is the correct
interpretation of the slope in the context of this problem?

A. The discount Tirado earns for each boat serviced.

B. The amount Tirado pays for each boat serviced.

C. The number of boats Tirado has.

D. The one-time fee Tirado pays for the service.

Answers

Answer- D.
The +1850 is the y intercept
A that is my answer

what is the distance between -25 to -12 on the number line

Answers

Answer:

120 units

Step-by-step explanation:

Answer: 13 lines?

Step-by-step explanation: 25-12=13 so +13 spaces; also, -25+13=-12

HELP ME PLEASE!!!!!!!

Answers

Here you go :) I sent the work in the picture below
The answer is y=-3 ur welcome

sorry for the last one but i need help on this asap please

Answers

Answer:

133.3333333333....

Step-by-step explanation:

60-36 = 24

24 ÷ 0.18 = 133.33333333....

I forgot how to do this can someone pls help me.

Answers

Wouldn’t it be 180 unless
264 i think (if not less but i’m not sure)

A company mixes pecans, cashews, peanuts, and walnuts to make a batch of mixed nuts.
About 15.4% of the mixed nuts in a batch are pecans.
If a batch contains 77 pounds of pecans, how many pounds of mixed nuts are in a batch altogether?
Enter your answer in the box.
lb of mixed nuts

Answers

Answer:

the pounds of mixed nuts are in a batch altogethe

77÷15.4%

=77÷0.154

=500pounds

Step-by-step explanation:

Answer:

500 lb of mixed nuts

Step-by-step explanation:

Find how many mixed nuts are in a batch by dividing 77 by 0.154

77/0.154

= 500

So, in a batch altogether, there are 500 lb of mixed nuts

I need help to answer this terrifying question

Answers

Answer: is c

Step-by-step explanation:

I just know

The answer is c:

if the first figure is rotated to the right, AB will be the top, just like WX.

Need Help. Preferably fast.

Answers

Answer:

Step-by-step explanation:

Yellow arrow aka the answer on the middle left goes with the answer on the middle right.

Red arrow aka the answer one from the bottem goes with the answer on the tippy top on the right.

The light green arrow aka the answer on the very bottom goes with the answer one from the bottom on the right.

The dark green arrow aka the answer on the tippy top goes with the one on the very bottom right.

Lastly, the purple answer aka the one thats one from the top goes with the one thats one from the top on the right.

Hope this helps! ;)

I attached a snipit of the answers as well

can someone pls help

The equation, a + (b + 7) = (b + 7) + a, is an example of which property?

A. distributive property
B. associative property of addition
C. commutative property of addition
D. associative property of multiplication

Answers

Answer:

Commutative property of addition

the answer is the associative property of addition

im sorry but im so confused T^T im so bad at these things- directions in picture NO LINKS OR YOUR GETTING REPORTED!

Answers

Answer:

x = 24

obtuse isosceles triangle

Step-by-step explanation:

x = 24 because a triangle has to have all the angles add up to 180. So x + x +132 = 180.

180-132 = 2x

48 = 2x

x = 24

It is an isosceles because two of the angles are the same and one is different which means two of the sides are the same and one is different. (isosceles = icicle is how I remember it). Obtuse because there is an angle that is over 90 degrees.

x=24
obtuse isosceles triangle

A cut piece of ribbon is 21 inches long. The piece of ribbon is 15% of the original length of the ribbon.

How long was the original length of ribbon?

Enter your answer in the box.
Answer Quick!

Answers

the original length of the ribbon was 140

Answer:

140 inches  

Step-by-step explanation:

The perimeter of quadrilateral is 58 centimeters. If the lengths of three sides are 14 cm, 15 cm, and 17 cm, what is the length of the missing side?

Answers

Answer:

12

Step-by-step explanation:

15 + 14 + 17= 46

58 - 46= 12

hope this helps! xoxo raina

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!

Answers

Answer:

The answer is J.

Step-by-step explanation:

Pythagorean Theorem: c² = a² + b²

The longest side appears to be 5 feet, which we can plug into the equation.

5² = a² + b²

Next, we can see that another side has already been shown, the 3 feet, so let's plug that in too.

5² = a² + 3²

25 = a² + 9

-9 -9

16 = a²

√16 = 4

We have now figured out the bottom of one triangle, but there is still another triangle that needs to be solved.

We can simply just add 4 + 4 together, which equals 8 feet, and is the width of the bottom of the tent.

3. Advanced question. Who can figure out how you can take an exchange rate which pegs $1.00 US to $1.21 CAD to see how much you would get in $US for $1.00 Cdn? It will be less than $1.00.

Answers

$1 can would be $0.83 us

Lilliana is training for a marathon. She runs the same distance every day for a week. On Monday,
Wednesday, and Friday, she runs 4 laps on a running trail and then runs 6 more miles. On Tuesday and
Sunday, she runs 6 laps on the trail and then runs 2 more miles. On Saturday, she just runs laps. How
many laps does Lilliana run on Saturday?

Answers

Answer:

7

Step-by-step explanation:

Let's call x the amount of miles that equal a lap.

So on Monday Wednesday and Friday, she runs 4x + 6 miles.

On Tuesday and Sunday she runs 6x + 2 miles.

And the problem says that she runs the same distance every day, so that means that

4x + 6 = 6x + 2

Now we solve that equation:

4x + 6 = 6x + 2

6 = 6x + 2 - 4x

6 - 2 = 6x - 4x

4 = 2x

x = 2

After that we choose either 4x + 6 or 6x + 2 to calculate the distance she runs on per day by replacing the x with a 2.

4(2) + 6 = 14

6(2) + 2 = 14

Finally we just divide the amount of miles (14) by the amount of miles per lap (2).

14/2 = 7 laps

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