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3 years ago

Which best represents a sampling error?

Mathematics

1 answer:

Nata [24]3 years ago

4 0

Answer:

D because the people at the jazz festival must be biased toward jazz because they are at a jazz festival and must like jazz.

Brainliest please?

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The distance between points A(1, -4) and B(x, -2) is <img src="https://tex.z-dn.net/?f=%5Csqrt%7B5%5Cbeta%20%7D" id="TexFormula1

11Alexandr11 [23.1K]

Answer:

5\beta ???

Step-by-step explanation:

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2 years ago

Which values of x in the interval 0 x 360 satisfy the equation 2sin^2x+sinx-1=0?

Temka [501]

Factor first: (sinx+1)(2sinx-1)=0
sinx+1=0 or 2sinx-1=0
sinx=-1 or sinx=1/2
0≤x≤360, so x=270, or x=30 or x=150

4 0

3 years ago

If 4.5 pounds of cherries cost $10, what is the unit price per pound

djverab [1.8K]

Simply divide $10 by 4.5 to get the answer $2.22 per pound (actually the 2's keep repeating.
I guess the store might charge $2.23 since some will round any overage to the next penny.

3 0

4 years ago

The ratio of students to teachers at a school is 19 to 1 how many students are there in each total number of people

vladimir2022 [97]

Question:

The ratio of students to teachers at a school is 19 : 1. How many students are there in each total number of people?

A: 100 people

b. 280 people

c.440 people

d.760 people

Answer:

A )95 students and 5 teachers

B)266 students and 14 teachers

C)418 students and 22 teachers

D)722 students and 38 teachers

Step-by-step explanation:

A: 100 people

Ratio = 19 : 1

The sum of the ratio is 19 + 1 = 20

Scale factor = $\frac{100}{20}$

scale factor = 5

The number students is $19 \times 5$ = 95

The number of teachers is $1 \times 5$ = 5

b. 280 people

Ratio = 19 : 1

The sum of the ratio is 19 + 1 = 20

Scale factor = $\frac{280}{20}$

scale factor = 14

The number students is $19 \times 14$ = 266

The number of teachers is $1 \times 14$ = 14

c.440 people

Ratio = 19 : 1

The sum of the ratio is 19 + 1 = 20

Scale factor = $\frac{440}{20}$

scale factor = 22

The number students is $19 \times 22$ = 418

The number of teachers is $1 \times 22$ = 22

d.760 people

Ratio = 19 : 1

The sum of the ratio is 19 + 1 = 20

Scale factor = $\frac{760}{20}$

scale factor = 38

The number students is $19 \times 38$ = 722

The number of teachers is $1 \times 38$ = 38

5 0

4 years ago

I REALLY NEED HELP FAST, will mark you the brainliest if you answer this first :D

VLD [36.1K]

Step-by-step explanation:

$required \: scale \\ = \frac{12 \frac{1}{2} }{1 \frac{9}{16} } \\ \\ = \frac{ \frac{25}{2} }{ \frac{25}{16} } = \frac{25}{2} \times \frac{16}{25} = \frac{1}{2} \times \frac{16}{1} \\ \\ = 8 \: : \: 1$

6 0

3 years ago