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erma4kov [3.2K]
3 years ago
9

A scientist measures the heights of 25 oak trees. When he finds a the mean of these data which phrase of inferential statistics

will it represent A. Data organization B: Data analysis C: Data gathering D: probability-based inference
Mathematics
2 answers:
igor_vitrenko [27]3 years ago
5 0

Answer:

data analysis

Step-by-step explanation:

iren2701 [21]3 years ago
3 0
D:probability-based inference

Hope i helped :)

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Based on housing data below which equation can be used to calculate fair housing prices?
VMariaS [17]

Answer:

B. y = 0.097x + 11.142

Step-by-step explanation:

In order to find the best equation to descibe the housing price, we have to calculate the slope of the line  first.

The equation of the line can be written as

y=mx+q

where m is the slope and q the y-intercept.

In order to have the most accurate estimate for the slope, we use the first point and the last point, that are:

(1900, 196)

and

(2200, 225)

The slope of the line is calculated as:

m=\frac{y_2-y_1}{x_2-x_1}=\frac{225-196}{2200-1900}=0.097

So, the slope of the line is 0.097.

Therefore, the correct option is the only one having a slope of 0.097, which is:

B. y = 0.097x + 11.142

5 0
3 years ago
Prove the polynomial identity.
aleksandr82 [10.1K]

Explanation:

Since we have given that

(2x+1)^2-2(2x+1)

Now, we have to prove it as

(2x+1)(2x-1)

Now, start the iterations:

(2x+1)^2-2(2x+1)\\\\=4x^2+1+4x-4x-2\\\\=4x^2+1-2\\\\=4x^2-1\\\\=(2x)^2-1\\\\=(2x+1)(2x-1)

So, first blank will be filled with

4x^2+4x+1

Second blank will be filled with

4x^2-1

Hence proved.

7 0
3 years ago
James has mapped his seat and his teacher's seat on the coordinate plane at (0,10) and (–4,6). Find the distance between their s
pshichka [43]

Answer:

4√2 units (Answer C).

Step-by-step explanation:

Going from the seat at (-4,6) to the one at (0,10), x increases by 4 units and y increases by 4 units.  We need to use the distance formula to determine how far apart these seats are.

d = √(change in x)^2 + (change in y)^2 ).

That works out to:

d = √(4^2 + 4^2) = √(32) = 4√2 units (Answer C).

8 0
3 years ago
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It has been found that 6% of all automobiles on the road have defective brakes. If 5 automobiles are stopped and checked by the
anzhelika [568]

Answer: umm

Step-by-step explanation:

4 0
3 years ago
How do you find the median?
Basile [38]

#1) Arrange the numbers from least to greatest.

#2) If there is a odd amount of numbers the middle number is your answer.

but if there is a even amount of numbers, take those two middle numbers, add them, then divide them by two. Then you got your answer.

5 0
2 years ago
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