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mina [271]
3 years ago
7

Which of the following sampling techniques is the most likely to produce a random sample, representative sample of all students

at a high school?
A. Choosing every 10th name on the student roster
B. Choosing every 10th student arriving in a 9th grade homeroom
C. Choosing the first 100 students who arrive at school
D. Asking students to call a phone number to answer survey questions
Mathematics
2 answers:
babymother [125]3 years ago
8 0

Answer:

Which of the following sampling techniques is the most likely to produce a random sample, representative sample of all students at a high school?

A. Choosing every 10th name on the student roster

B. Choosing every 10th student arriving in a 9th grade homeroom

<u>C. Choosing the first 100 students who arrive at school </u>

D. Asking students to call a phone number to answer survey questions

Step-by-step explanation:

Ray Of Light [21]3 years ago
3 0
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ A. choosing every 10th name on the student roster.

This is the most random as it is non biased. The first and second one are biased towards the student who arrive early and therefore, wouldn't produce a random sample. The last one is also not random as it relies on volunteers.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

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How does the number 7 in 777.77 in the tenths place compare to 7 in the hundredths place
frosja888 [35]

Answer:

0.7 is 7/10 Example out of ten cookies 7 are chocolate chip

0.07 is 7/100 Example out of 100 cookies 7 are chocolate chip

Hope This Helps!!!

5 0
2 years ago
At a country concert, the ratio of the number of boys to girls is 2:7. If there are 250 more girls than boys, how many boys are
allsm [11]
We can setup an equation for this.

Boys to Girls = 2:7
Boys =  x
Girls = 250+x
Setup the ratio 
 x:(250+x) = 2:7
x / (250+x) = 2/7
7x = 500+2x
7x-2x = 500
x = 500/5 =100

There are 100 boys at the concert
6 0
3 years ago
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What is the equation of the line that passes through the point (-2, 0) and has
garik1379 [7]

Answer:

y = 2x + 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2 , then

y = 2x + c ← is the partial equation

To find c substitute (- 2, 0 ) into the partial equation

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y = 2x + 4 ← equation of line

8 0
3 years ago
Prove : the graphs of the function f(x)=x4<br> and g(x)=x3-x2 have aunique intersection<br> point.
vagabundo [1.1K]

Answer:

The unique intersection point for the given functions which is at x = 0.

The intersection point is (0,0)

Step-by-step explanation:

We are given the following information in the question.

f(x) = x^4\\g(x) = x^3-x^2

We have to find the intersection point.

Equating the two equations we get,

x^4 = x^3 - x^2\\x^4 - x^3 + x^2 = 0\\x^2(x^2-x +1) = 0\\x^2 =0, x^2-x +1 = 0\\x = 0, x = 0, x^2-x +1=0

Since the quadratic equation gives complex root, thus there is a unique intersection point for the given functions which is x = 0.

The attached image shows the graph for the given function.

The red line represent f(x) and blue line represent g(x).

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4 0
3 years ago
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jasenka [17]

Answer:

I'm pretty sure it's -4

Step-by-step explanation:

If you substitute in -2, you get e(-2)= -(-2)+ -6

which is equal to 2-6

2-6=-4

8 0
3 years ago
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