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Gre4nikov [31]
3 years ago
11

A town has 100 homes in it. According to a census, the actual distribution of pets in these homes gives a median of 0.8 pets and

a mode of 1 pet. A student surveys 10 of these homes and finds nearly identical data: a median of 0.7 pets per home with a mode of 1. The student’s small survey gives nearly the same results as the much larger census because the
A) town itself is very small.

B) student simply got lucky.

C) student made a miscalculation

D) variation in the number of pets per house is small.
Mathematics
2 answers:
stellarik [79]3 years ago
6 0
The nest answer would be c> hope this helps 
natulia [17]3 years ago
6 0
The answer is D. I think.
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Quincy, Ralph, Samantha and Teresa all joined a summer reading program. Quincy read five more books than Ralph did. Ralph read h
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Answer:

Quincy read 9 books.

Step-by-step explanation:

Work backwards. Samantha read three less books than Teresa (11-3=8). Ralph read half as many books as Samantha (8/2 = 4). Quincy read five more books than Ralph (4 + 5 = 9).

5 0
3 years ago
can someone help me!! Use algebraic rules of equations to predict the solution type to the system of equations. Include all of y
xz_007 [3.2K]

Answer:

x + y = 4 Equation 1

y = 2x -1 Equation 2

-2x + y = -1

x + y = 4

Subtract

You will get

- 3x = -5

Divide by -3

-3x / -3 = - 5 /-3

x = 5/3

Substitute x into equation 1

x + y = 4

x = 5/3

5/3 + y = 4

y = 4 - 5/3

y = 7/3

x = 5/3 y = 7/3

Hope this helps.

4 0
3 years ago
1. Consider the function f(x) = x² – 9. Algebraically determine the domain of y = Vf(x) . State using set notation.
AfilCa [17]

Answer:

-3<x<3

Step-by-step explanation:

let y=0

0=x^2-9

0=(x+3)(x-3)

x=-3 and x=+3

8 0
3 years ago
Suppose that you are a city planner who obtains and sample of 20 randomly selected members of a mid-sized town in order to deter
Dmitry_Shevchenko [17]

Answer:

The critical value for the 95% confidence interval is z = 1.96.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96.

The critical value for the 95% confidence interval is z = 1.96.

5 0
3 years ago
If DE = 8x, EF = 2x, and DF = 10, what is DE?
Drupady [299]

Answer: The answer will be 8x.

Step-by-step explanation:

5 0
3 years ago
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