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4 years ago

Absolute deviation

2 answers:

7 0

To find the absolute deviation of the data point 7, you will find how far this number is from the mean. Because the mean was 5, the absolute deviation from the mean is 2. 7 is two units away from 5.

jok3333 [9.3K]4 years ago

3 0

Answer:

answer is 2

Step-by-step explanation:

no one want to read this lol

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What do the following two equations represent?

klio [65]

Answer:

perpendicular lines

Step-by-step explanation:

when the two equation are written in slope intercept form:

y = -4x -7

y = 1/4x -2

the slopes are opposite reciprocals which means they are perpendicular

8 0

3 years ago

Quilt squares are cut on the diagonal to form triangular quilt pieces. The hypotenuse of the resulting triangles is 16 inches lo

Morgarella [4.7K]

To do this problem you would need to have at least one side length AND the hypotenuse to figure out the other side length.

4 0

3 years ago

One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui

Oksana_A [137]

Answer: 90% confidence interval would be $(-0.2483,-0.0717)$

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, $p_m=\dfrac{10}{50}=0.2$

n₂ = 50

Number of electronic tagged penguins = 18

So, $p_e=\dfrac{18}{50}=0.36$

So, at 90% confidence interval, z = 1.28

So, interval would be

$(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)$

Hence, 90% confidence interval would be

$(-0.2483,-0.0717)$

6 0

3 years ago

Take any three digit number. Reverse its digits and subtract the smaller of the two numbers from the larger. Determine what numb

rjkz [21]

Answer: 11 is the required number that always divides such differences for the following types of numbers.

Step-by-step explanation:

Take any 3 - digit number, say, 325

On reversing its digit it becomes, 523

On subtracting the smaller of the two numbers from the larger, $523-325\\\\=198$

we can see that 198 is an even number.

take another number say, 629

On reversing its digit, it becomes = 926

On subtracting , we get that

$926-629=297$

But 297 is not an even number.

But there is one common in both the cases is that both the differences are divisible by 11.

Hence, 11 is the required number that always divides such differences for the following types of numbers.

8 0

3 years ago

In my town, gas prices are always listed to the thousandths place. Since the smallest coin we have is the penny, we have to roun

AlladinOne [14]

Answer:

$8.16

Step-by-step explanation:

6 0

3 years ago