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Bezzdna [24]
3 years ago
15

A January 2007 Gallup Poll question asked, "In general, do you think things have gotten better or gotten worse in this country i

n the last five years?"
Possible answers were "Better", "Worse", "No Change", "Don’t Know", and "No Response".
What kind of a variable is the response?
Mathematics
1 answer:
Margaret [11]3 years ago
4 0

Answer:

Qualitative variable

Step-by-step explanation:

The response is qualitative variable due to its possible categories. In short, the response can only be divided into categories and cannot be interpreted numerically in a meaningful way. Thus, response is a qualitative variable. Also, the categories involves ordering like better and worse etc so, the measurement of scale would be ordinal in this scenario.

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At a summer camp there is one counselor for every 5 campers. Determine whether there is a direct variation between the number of
adell [148]
Campers = y and counselors = x.....1 counselor to 5 campers

y = kx
k = y/x
k = 5/1

y = 5x

lets check..
y = 5x....lets say u have 2 counselors...sub in 2 for x
y = 5(2)
y = 10....so when there is 2 counselors, there are 10 campers

y = 5x...lets say u have 3 counselors...sub in 3 for x
y = 5(3)
y = 15...so when there are 3 counselors, there are 15 campers

2/10 reduces to 1/5
3/15 reduces to 1/5

so yes, this is a direct variation with ur equation being y = 5x

5 0
3 years ago
A set of math tests is normally distributed
sergey [27]

2.2-0.6=1.6

1.6*81=129.6

129.6/2=64.8

Answer: 64.8

3 0
3 years ago
(50 POINTS! PLEASE HELP!) Alang has a bag that contains pineapple chews, strawberry chews, and lime chews.
Lelechka [254]

Answer:

<u>1/13</u>

Step-by-step explanation:

Probability (lime chew) :

  • No. of times lime chew was selected / Number of times experiment was conducted
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8 0
2 years ago
Read 2 more answers
Your class sells a box of oranges to raise $500 for a field trip.You earn $6.25 for each box of oranges sold.Write and solve an
emmainna [20.7K]
To do this, find the slope, y-intercept, and your goal. 

Your goal is 500. 
Your slope is 6.25 per orange. 
Your y-intercept is 0 (you don't start out with anything.)

So, the inequality is 500 \leq 6.25x.
8 0
3 years ago
Read 2 more answers
y = 2x squared + 5x -3 can be written in the form y= 2( x+a) squared + b . Find the value of a and the value of b.
Elan Coil [88]

General vertex form:

y = m(x − a)² + b  \: with  \: vertex \:  at \:  (a, b)

Given :

y = 2x² + 5x  - 3

Extract "spread factor" m

y = 2( x² +  \frac{5}{2} x) - 3

Complete the square

y = 2(x²  +  \frac{5}{2}x + ( \frac{5}{4})²) - 3

- 2( \frac{5}{4})²

Write as a squared binomial and simplify the constant

y = 2(x +  \frac{5}{4})² - 6 \frac{1}{8}

Re-write to match signs of standard general form:

y = 2(x - ( -  \frac{5}{4}))² \:  + ( - 6 \frac{1}{8})

3 0
2 years ago
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