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trasher [3.6K]
3 years ago
15

Question 18.

Mathematics
1 answer:
DENIUS [597]3 years ago
3 0

Answer: c

Step-by-step explanation:

sampling variability is the difference between the measured value of the random sample and the mean age of the population

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The number of points Marcus scored in different rounds of a computer board game is shown
shtirl [24]

Answer:

583

Step-by-step explanation:

The mean of a data set is the average of the data set. It can be found by adding up all of the values and then dividing by the total number of values added. In this case, one is given the mean, and one needs to find a missing value. Since there is a missing element, add one to the total number of values in the data set. The missing element is represented by the parameter (x). Set up an equation and solve:

\frac{(236)+(342)+(328)+(352)+(352)+(306)+(317)+(x)}{8}=325\\

Simplify,

\frac{2233+x}{8}=352

Inverse operations,

2233+x=2816\\\\x = 583

3 0
2 years ago
Read 2 more answers
2x - 2 = x-5<br> I’ll give 35 points plz help
tino4ka555 [31]

Answer:

x = -3

Step-by-step explanation:

2x-x=-5+2

x = -3

8 0
3 years ago
What graph represents the function f(x)= -x2+5?
ololo11 [35]
I hope it would helps

6 0
2 years ago
Optimization-
pishuonlain [190]
Do you want a proof or just the answer?
The answer is: the square (2.5x2.5).
5 0
3 years ago
N the diagram, and are horizontal lines and is a vertical line segment. If FB : FC = 4 : 3, what are the coordinates of point D?
riadik2000 [5.3K]
<span>Given the diagram, where AB and EF are horizontal lines and CB is a vertical line segment. Given that FB : FC = 4 : 3, From the diagram, the coordinate of A is (-10, -8) and the coordinate of C is (-3. -1). We can also see that the coordinate of B is (-3, -8) (since CB is a vertical line means that B is the same x-value as C and AB is a horizontal line means that B is the same y-value as A) Recall that the coordinate of a point dividing a line segment in the ratio m:n is given by (x1 + m/(m+n) (x2 - x1), y1 + m/(m+n) (y2 - y1)) Thus, since FB : FC = 4 : 3, this means that point F divides the line segment BC in the ratio 4 : 3. Thus, the coordinate of F is given by (-3 + 4/(4+3) (-3 - (-3)), -8 + 4/(4+3) (-1 - (-8))) = (-3 + 4/7 (0), -8 + 4/7 (7)) = (-3, -4). Also, given that FB : FC = 4 : 3, this means that point D divides the line segment AC in the ratio 4 : 3. Thus, the coordinate of D is given by (-10 + 4/(4+3) (-3 - (-10)), -8 + 4/(4+3) (-1 - (-8))) = (-10 + 4/7 (7), -8 + 4/7 (7)) = (-6, -4). Therefore, the coordinates of point D is (-6, -4).</span>
5 0
3 years ago
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