A band director is trying to decide what music to play for the halftime show. She surveys the marching band
students to get their opinions about which music they would prefer. Which of the following sampling techniques
would provide a stratified random sample that would accurately represent the students' opinions?
Have a computer randomly sort the band members, then select the first 30.
O Randomly select 2 students from each type of instrument (trumpet, saxophone, clarinet, etc.).
O Randomly pick a letter of the alphabet and survey every student whose last name begins with that letter.
Randomly pick a year of students (freshman, sophomore, junior, or senior) and survey every student from the
selected group
Mark this and retum
Save and Exit
Nex
Submit

Answers

Answer 1

Answer:

B

Step-by-step explanation:


Related Questions

7.1.13 Question Help Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=992 and x = 570 who said 'yes." Use a 99% confidence level. B Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.)​

Answers

Answer:

The Point estimate of the Population proportion  E = 0.039≅0.04

Step-by-step explanation:

Step(i):-

Given that the sample size 'n' = 992

  and                                     x = 570

The Population proportion

                                   [tex]p = \frac{x}{n} = \frac{570}{992} = 0.5745[/tex]

Step(ii):-

The point estimate of the Population proportion is determined by

[tex]E = 2.576 \frac{\sqrt{0.574(1-0.574)} }{\sqrt{992} }[/tex]

E = 0.039≅0.04

Final answer:-

The point estimate of the Population proportion  E = 0.039≅0.04


Jason owns a party supply store.
He sells balloons for $0.50 each and party hats for $1.25 each.
Jason buys each balloon for $0.10 and each party hat for $0.20.
Which expression represents how much money Jason gains from selling n balloons
and h party hats?
А
0.40n + 1.05h
B
0.60n + 1.45h
С
1.75nh
D
1.45h - 0.60n


Answers

Answer:

A.

Step-by-step explanation:

Balloons sell for $.50 - $.10 (Jason’s cost)= $.40 profit

Party hats sell for $1.25 - $.20 (Jason’s cost) = $1.05 profit.

Therefore, A. 0.40n + 1.05h is the correct answer

Please help with this math question'

Answers

Answer:

~1.93 seconds

Step-by-step explanation:

Set hight to 0:

0 = -16t^2 + 4t + 52

Rearrange:

16t^2 - 4t - 52

Solve using the quadratic formula: (Only use the positive result)

t = (1 + √209)/8

t ≈ 1.9321

please help me :))))))

Answers

The answer is C lol

Answer:

C. 16/41

Because there are 9 blue and 7 Green.

The county fair charges $1.00 per rode and an additional $3.00 to get in the fair. Write an equation to represent the total cost of attending the fair.

First identify the independent and dependent variables.​

Answers

Answer:

Step-by-step explanation:

It's independent

Alexa uses the binomial theorem to correctly expand (x + 2)^4. Which is one of the terms in Alexa's
answer?
24x^2
6x^2
16x
2x^4

Answers

Answer:

24x^2

Step-by-step explanation:

When expanded (x+2)^4= x^4+8x^3+24x^2+32x+16

The only term that matches with these is 24x^2

Answer:

24x^2

Step-by-step explanation:

5. How much force is needed to stop a 1,400 kg truck pulling up to a stop light if
the truck took 4 seconds to stop and was moving at 36 m/s?

Answers

Answer:

Step-by-step explanation:

F=ma

F=m(dv/dt)

F=1400(-36/4)

F=-12600N (the negative sign just means the force was slowing the vehicle, the magnitude of the force is just the absolute value.

F=12600N

Help ASAP pls im giving away all of my points!!
Do you think you would have liked to have been a participant in Biosphere 2? Why or why not?

Answers

Answer:

NO. It sounds terrifying, and nearly deadly with the lack of oxygen..all the pollution from things like cars and factories, the littering, the deforestation, the animals that are either endangered or extinct.

Step-by-step explanation:

10 rubber stamps cost $10.30.
Which equation would help determine the cost of 2 rubber stamps?
Choose 1 answer:

Answers

D because the question would have to be multiply the numbers in a way that would get you the cost of 2 rubber stamps

HELP PLEASE ASAP !!!!!!!!!!!!!!!!!!!

Answers

The answer is 134cm2:)

Answer:

I think not to sure how I got the answer 134.

Make the subject of the following Question

1. 10b= 3

Answers

Answer:

la respuesta que buscas es bastante simple pero no lo sé

Step-by-step explanation:

b=3/10
Alternate form: 0.3

What percent is equivalent to 0.25%

Answers

Answer:

the percent is 25% lol

Step-by-step explanation:

Decimal .25

percent 25%

fraction 1/4

Answer:

0.25

Step-by-step explanation:

I'll give The BRAINLIEST think of a story you know really well. It can be a book, tv show, movie, etc. Think about the main character and answer the following questions: 1) Who are they? 2) Where and when are they? 3) What is the super objective? 4) What are some smaller objectives? 5) What obstacles are there?
IF YOU DON'T ANSWER IT CORRECTLY ILL REPORT YOU FASTER THAN THIS NEEDS TO BE SUBMITTED.​

Answers

DEATH NOTE US ABOUT A CHARACTER Name light Yagami he’s in Japan and his objective is to put the crime right now his obstacles are a detective named l

Find the area of the shape shown below.

Answers

Answer:

42

Step-by-step explanation:

Because of its shape I would imagine another flipped so it makes a square then solve for the square the divide.

7 x 12 =84

84÷2=42

Anyone know the answer?? I’ve asked so many times but nobody seems to explain how to get it and just gives the letter so please explain!! I’ll give brainliest (:

Answers

Answer:

14.

The formula is 2(x-6)+2x=44

write the name of each signage in a sheet of paper ​

Answers

Answer:

good do hhi

Step-by-step explanation:

What is the area of the base
48
45
30
24

Answers

Answer:

24

Step-by-step explanation:

$100 for 4 years at 4.5% per annum​

Answers

amount=P+S.I

=100+18

=RS118

find factors for6v^2+66v+60

Answers

Answer:

6 ( v + 1 ) ( v + 10 )

If a randomly thrown dart hits the board below,
what is the probability it will hit the shaded region?
B
1
3
D
con
4.

Answers

Answer:

Step-by-step explanation:

The value of the digit 6 in the number 47,602 is 10 times the value of the digit 6 in which number?
A. 76.201
B. 60.245
C. 53.462
D. 46,290

Answers

Answer:

Answer B

Step-by-step explanation:

In 47,602, the six is in the hundreds place.

We can divide 100/10 to get what place value it should be in. This gives us the tens place.

Now, we can see which number has a six in the tens place: Answer B, because sixty is 6 * 10.

What is the total number of different 11-letter arrangements that can be formed using
the letters in the word ORTHOGRAPHY?

Answers

Answer:

4989600

Step-by-step explanation:

First, find how many letters there are. There is 11 letters.

Next, find which letters are repeated and if so, how many times. The letters O, R, and H are each repeated twice.

Since there are 11 letters, you must do 11 ! (factorial). There are 3 letters that are repeated twice, so you must divide by 2 ! 3 times.

Your equation is:

11!/ 2! * 2! * 2!

It simplifies into 39,916,800/8 which is equal to 4989600

Find x. Round your answer to the nearest tenth of a degree.
9
6
X

Answers

not enough information, assuming you pasted it badly. try including a screenshot instead
I may guesss and say the answer is the third one

The probability line shows the probability of 5 chance events (A, B, C, D, and E) occurring. Which THREE statements BEST describe the likelihood of the event occurring?
A) Event A is certain to occur.
B) Event E is certain to occur.
C) Event D is certain to occur.
D) Event B is not likely to occur.
E) Event C has an even chance of either occurring or not occurring.

Answers

Answer:

The answer is:

B) Event E is certain to occur.

D) Event B is not likely to occur.

E) Event C has an even chance of either

Step-by-step explanation:

Event E is certain to occur. Event B is not likely to occur and Event C has an even chance of either occurring or not occurring so options (B),(D), and (E) are correct.

What is probability?

The probability of an event occurring is defined by probability.

Probability is also called chance because if you flip a coin, the probability of coming head and tail is nothing but the chance that either head will appear.

As per the given probability line.

The probability of event E = 1 so it will be certain to occur.

The probability of event B is very close to zero so it will not likely occur.

The probability of event C is 0.5 so it has an equal chance to occur or not.

Hence "Event E will definitely happen. Event C has an equal chance of happening or not, but Event B is not likely to happen".

For more information about the probability,

brainly.com/question/11234923

#SPJ2

The full question below,

Consider again the tossing of a pair of dice. Find the probability the
sum is greater than 6. (Round to the hundredths)

Answers

Answer:

7/12 or 58.333%

Step-by-step explanation:

There are the 36 possible outcomes.  

6+5+4+3+2+1 = 21 are greater than 6  

Probability is 21/36 = 7/12 or 58.333%

w
The table below lists the means and standard deviations for 5th graders in the district and for the norm group for
student performance in four different subjects. According to the table, the performance of the 5th graders in the
district is more variable than that of the norm group in which subject(s)?
ed
ati
n
100
Sc
Geography English Spelling Science
Mean of all 5th graders in District (150 students) 75
125 90
SD of these 5th graders
12
10 12 20
Mean of the Norm Group
85
100 120 90
SD of the Nom Group
10
10 15 15
ww
sti
20
ker
ndo
ted
Geography, Spelling, and Science
Geography and Spelling
Geography and Science
Spelling only
Science only
Geography only
lccr
Sa
le au
isid

Answers

Answer:

Can you please format this? it's hard to understand right now

someone help me please! with questions 1-4 , geometry is not my strong suit

Answers

Answer:

for the first 2 neither one is a polygon because a polygon has straight sides and is closed connections were the first shape has an open connection and the second shape has a curved line. for question i believe is 48 and question 4 is 145.

explanation.

for the last 2 problems their total equal 360 so you just add up all the side then subtract the number you got by 360 and that's your answer. ex.) 120 +130+ 62=312. 360-312=48

can u do this plz urgent ​

Answers

Answer:

1-1) A=6×5=30m² | P=6×2+5×2=12+10=22m

1-2) A=5×20=100mi² | P=5×2+20×2=10+40=50mi

2-1) A=16×6=96m² | P=16×2+6×2=32+12=44m

2-2) A=20×9=180km² | P=20×2+9×2=40+18=58km

3-1) A=14×17=238yd² | P=14×2+17×2=28+34=62yd

3-2) A=20×18=360mi² | 20×2+18×2=40+36=76mi

Which figures below have at least one acute angle? Mark all that appley ​

Answers

C and D

An acute angle is an angle less than 90 degrees.  

Answer

triangle and trapezium

5. a meteroid travels 6/8 miles
in 30 seconds. How far will it
go in one minute?

Answers

Answer:

1 1/2 miles

Step-by-step explanation:

1 minute = 30 x 2 seconds

6/8 x 2/1 = 12/8 = 1 1/2

Answer:

3/2 miles

Step-by-step explanation:

just multiply by two

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