Maria wants to determine which students is favored for president of the student council. Which of the following samples are biased and not freedom? Select all that apply.
O Surveying the boys in the freshman class.
O Surveying every other student in the cafeteria.
O Surveying all the students in her math class.
O Surveying 20 students from each grade at random.
O Surveying the students in the chess club.

Answers

Answer 1
- Surveying the boys in the freshman class is biased. It doesn’t take a sample from all of the school, it is from only one grade and one gender.

-Surveying every other student in the cafeteria would be biased IF only a certain grade was in there at a certain time. If every student was in the cafeteria at the same time, it would be non biased.

-Students in her math class is biased- it only considers those in a certain class, not everyone.

-20 from each grade at random is NOT biased, it considers every grade and 20 random students.

-Chess club is biased. Only students in one particular group get to answer. Hope this helps!
Answer 2

Answer:

A, C, E,

Step-by-step explanation:

A)Surveying the boys in the freshman class.

C)Surveying all the students in her math class.

E)Surveying the students in the chess club.


Related Questions

Hi, good morning. i will give u brainlest if u help me thanks and if u get the answer correct.

Answers

Answer:

22.50

Step-by-step explanation:

 Given:

Selling everything in his store for 5/8 of the marked price.

find a t-shirt that is marked at $36

Solve:

36 * 5/8

[tex]\frac{36}{1}\cdot \frac{5}{8}[/tex]

[tex]\frac{9\cdot \:5}{2}[/tex]

[tex]\frac{45}{2}[/tex]

22.50

~lenvy~

Convert 2.25 to a mixed number and an improper fraction. Write answers in the simplest form.

Answers

Answer: Answer in picture

Step-by-step explanation:

Math

Convert the equation to standard form:
f(x) = 2(x - 1)(x + 4)

Answers

Answer:

2x^2 - 10x - 8.

Step-by-step explanation:

f(x) = 2(x - 1)(x + 4)    

= 2(x^2 - x - 4x - 4)

= 2(x^2 - 5x - 4)

= 2x^2 - 10x - 8.

What is the area of this figure?
Use 3.14 for TT.

Please help

Answers

Answer:

406.08

Step-by-step explanation:

First FInd the area of the rectangle : which is short side * long side

-> 15*12=180m

Then find the area of the half circle, the formula of the area of a circle is [tex]\pi r^2[/tex]

here it's half a circle so it's [tex]\frac{\pi r^2}{2}[/tex] where r is 12

-> [tex]3.14\cdot \frac{\left(12\right)^2}{2}=226.08 m[/tex]

Finally just add the area of the rectangle with the area of the half circle

-> [tex]180+226.08=406.08 m[/tex]

How many flowers spaced in every 6in., are needed to surround a circular garden with a 175-ft radius? Use 3.14 for (pie symbol)

Answers

Answer

2199

Step-by-step explanation:

the perimeter of the circle:

3.14 x 175 x 2= 1099

there are 2 inches in one foot

1099x12 = 13188

13188/6 inches = 2198

2198+1=2199 flowers

Please help me this question

Answers

This is the answer. If this helps you please give brainliest.

Answer:  8

Work Shown:

[tex]\frac{2^x \times 3^y}{2^4 \times 3^2} = 6\\\\\frac{2^x \times 3^y}{2^4 \times 3^2} = 2\times3\\\\\frac{2^x \times 3^y}{2^4 \times 3^2} = 2^1\times3^1\\\\2^x \times 3^y = (2^4 \times 3^2)(2^1\times 3^1)\\\\2^x \times 3^y = (2^4\times2^1) (3^2\times 3^1)\\\\2^x \times 3^y = 2^{4+1} \times 3^{2+1}\\\\2^x \times 3^y = 2^{5} \times 3^{3}\\\\[/tex]

The 2^x matches with 2^5, showing that x = 5.

3^y matches with 3^3 to get y = 3

Therefore, x+y = 5+3 = 8

Plan 1 costs $35 per month + $5 per gigabyte of extra data used Plan 2 costs $50 per month + $2 per gigabyte of extra data used

Answers

Answer:

40+52

Step-by-step explanation:

Choose the student who wrote and solved the equation correctly.

The cost of 4 bananas is $2.36. What is the cost of each banana?

Answers

Using proportions, it is found that the cost of each banana is of $0.59, and Juan is the student who wrote and solved the equation correctly.

What is a proportion?

A proportion is a fraction of a total amount.

In this problem, the cost of 4 bananas is $2.36, hence the cost of each banana is given by:

C = $2.36/4 = $0.59.

Which means that Juan is correct.

More can be learned about proportions at https://brainly.com/question/24372153

Line segment AB has endpoints A(−1,6) and B(5,−6).

What are the coordinates of the point that partitions AB according to the part-to-part ratio 1:5?


(0,4)

(−4,4)

(4,0)

(4,−4)

Answers

Answer:

(0,4)

it was correct

A rectangular piece of paper has an area of 117 square inches and a perimeter of 44 inches. What are the dimensions of the paper?

Answers

Answer:

13x9

Step-by-step explanation:

half of perimeret of  rectangle L+W

half of perimeter of  rectangle = 44/2 = 22

L+W=22

LxW=117

  Think of 2 numbers that added =22 and multiplied =117

       13+9 =22

    13x9 =117


(


,

6
)

(

1
,

)
(
-

,
-
6
)

(
-
1
,

)
on a number line

Answers

Answer:

I think your adopted and nobody loves you

Step-by-step explanation:

Each square below represents one whole

Answers

Answer:

52.

Step-by-step explanation:

shaded = (3²) + (2²)

shaded = 9 + 4

shaded = 13

Unshaded = (3 x 2) + (2 x 3)

Unshaded = 6 + 6

Unshaded = 12

All = 12 + 13

All = 25

100 / 25 = 4

4 x 13 = 26 x 2

26 x 2 = 52.

Answer:

48%

Step-by-step explanation:

25 total boxes

12 are filled

12/25=48%

A triangle has side lengths of 6, 8, and 10. Is it a right triangle? Explain.

Answers

Answer:

yes

Step-by-step explanation:

Using the Pythagorean Theorem, considering that the sum of the squares of the lengths of the two smaller sides is equals to the square of the length of the greater side, the triangle is a right triangle.

Pythagorean Theorem:

The Pythagorean Theorem states that for a right triangle, the sum of the squares of the lengths of the two smaller sides is equals to the square of the length of the greater side.

so it is a right triangle.

Find the measures of the
4 22.
140°
to
110°
i just need 22 and 23 pls

Answers

Answer:

Absolute Value measures the distance a number is from zero on the number line. ... 20) 2 - 5 = -3 21) -7+4 = -3 22) 20 - 15 = 5 23) -11 - 20 = -31

Step-by-step explanation:

Robert had 9 golf balls. He gave Tim 4. How many did he have left?
No encuentro la respuesta

Answers

Answer: 5.

Step-by-step explanation: Originally, Robert had 9 golf balls.  Then, he gave 4 to Tim, so that gives us an immediate clue that this is subtraction.  We can solve this problem by the following:

9 - 4 = ?

9 minus 4 equals 5, so we can fill in the question mark with our answer:

9 - 4 = 5.

Therefore, your answer is 5.

Have a great day! :)

5

Step-by-step explanation:

It is subtraction problem 9 take away 4 and you are left with 5

geomerty!!! HELP PLEASE

Answers

Answer:

The Scale Factor is 5.3

Step-by-step explanation:

Here's the reason why:

You are trying to make the rectangle much larger.

The 14yd by 6yd is trying to get to the 74.2yd by 31.8yd.


We need to remember the importance of length and width.

If 14 yards is our length then 74.2 yards is our length on the enlarged rectangle.

You must do 74.2/14 because we need to work backwords.

**You can't find something to multiply 14 by to get to 74.2 unless you do division.**

74.2/14 is 5.3

Now do the same with the width.

31.8/6

That is 5.3 as well.

Therefore the scale factor is 5.3

For each equation how many solutions why?
Question e

Answers

Answer:

one real solution

Step-by-step explanation:

it has only one solution since it is a linear graph and only intercepts the x axis once

forgot can you explain the answer

Answers

Answer:

18 is 30% of 60

Step-by-step explanation:

Try to line up percents % and the actual numbers they represent.

number : precent

       60  is 100%

        18  is x %

cross multiply

x·60 = 100·18

divide both sides by 60 to isolate x

x = ((100·18)/60

x = 30

please explain how you got the answer please i need to see how you got that answer!! umm please someone give me it quick

Answers

Answer:

y>-2

Step-by-step explanation:

her mistake was she did -22-6= -28 but the correct solution is -22+6= -16


A. 197 cm
B. 158 cm
C. 155 cm
D. 55 cm

Answers

Answer:

158

Step-by-step explanation:

The Formula for Area is: A = L * W

First lets start with the rechtangle:

A = L * W

A = 17 * 7 = 119

the area of the rechtangle is 119

Now the triangle the formula is a little diffrent but it is the same concept

A=hbb (Picture below, it wont let me write it out right)

2=6·13

2=39

The area of the triangle is 39

Now add the both areas

119 + 39 =

158

help please this assignment is do in a few minutes

Answers

C. is the correct answer in this case

Answer:

The answer is C because the ratio 2:5 is equal to 40:100

based on the experimental probability about how many times will yosef draw a green marble if he draws a total of 75 marbles

Answers

35 if you want to count purple but 12 if your from orange

Mr Shreshta borrowed rupees 2,000 from a bank at the rate of 4 % per year
i need answer
step by step
process by process

Answers

Answer:

Rs. 480

Step-by-step explanation:

Per month interest amount = 2000 x 0.02 = Rs.40

One total interest cost =Rs. 40 x 12 ( 12months i. e. 1 year)

= Rs. 480

Katie practiced her flute for 45 mins Then she ate a snack for 15 mins Next She watched televosion for 30 mins until 6:00 p.m at what time did Katie start practicing the flute

Answers

I want to assume at 4:30
Katie practiced the flute at 5:15 pm

First we add 30 and 15 which is 45 then subtract that from 60 because 60 minutes make up an hour. 60-45= 15 therefore, Katie practiced the flute at 5:15 pm

What is the area of the following figure?

Answers

Answer:

A=31.5cm squared

Step-by-step explanation:

A=lw

A=(9)(3.5)

A=31.5

therefore A=31.5cm squared

Answer:

31.5 cm

Step-by-step explanation:

Just multiply the length and width

The table shows the speeds of the four fastest drivers in a car race.
Driver
Speed (miles per hour)
Marco
224.362
Finn
224.136
Will
224.48
Liz
224.392
Did Marco win this week's race? Use words and numbers to justify your answer.
Answer:
14

Answers

Marco only got 2nd place

Step-by-step explanation:

A math class consists of 10 girls and 8 boys. The teacher wants to choose 2 girls and 2 boys to go on a trip. How many different groups could the teacher choose?


A. 5040

B. 3060

C. 1260

D. 73

Answers

Answer:1260

Step-by-step explanation: photo of the graded question attached

A math class consists of 10 girls and 8 boys. The teacher wants to choose 2 girls and 2 boys to go on a trip. How many different groups could the teacher

choose?

x3060

073

5040

1260

What is the difference of the solutions to (y-3)(y+3/2)=0?

I got stuck on the last part. Can someone answer this step by step please? And what is 3-3/2?

Answers

Answer:

(y-3)(y + 3/2) = 0

y = 3 or y = -3/2

the diff

3 - ( - 3/2 )

3 + 3/2

6/2 + 3/2

9/2 or 4.5

Referring to question 1, what is the predicted strength of a weld with a diameter of 51?

Answers

The predicted strength is an illustration of a linear regression

The predicted strength of a weld with a diameter of 51 is -503.2

How to determine the predicted strength?

The equation of the predicted strength is given as:

Strength = -941.6992 + 8.5988*Diameter

Substitute 51 for diameter

Strength = -941.6992 + 8.5988*51

Evaluate the sum

Strength = -503.1604

Approximate

Strength = -503.2

Hence, the predicted strength of a weld with a diameter of 51 is -503.2

Read more about linear regressions at:

https://brainly.com/question/17844286

The predicted strength is an illustration of linear regression.

The predicted strength of a weld with a diameter of 51 is -503.2.

What is linear regression?

Linear regression strives to show the relationship between two variables by applying a linear equation to observed data.

The equation of the predicted strength is given as:

Strength = -941.6992 + 8.5988 × Diameter

Substitute 51 for diameter

Strength = -941.6992 + 8.5988 × 51

Strength = -941.6992 + 438.5898

Strength = -503.1604

Strength = -503.2

Hence, the predicted strength of a weld with a diameter of 51 is -503.2.

Read more about linear regressions at:

brainly.com/question/17844286

i dont know what to say anymore just help

Answers

The answer can be written as either -4/17 or -2.532. To solve, convert both to either a fraction or decimals (whichever you’re more comfortable with) and divide as you would with those types of numbers.
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