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Orlov [11]
2 years ago
6

With a mean of 100 and standard deviation of 15, what percentage of IQ scores are less than 110

Mathematics
1 answer:
vekshin12 years ago
3 0

Answer:

i think 125

Step-by-step explanation:

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What is the equation of the line of the best fit for the following data? Round to the slope and y-intercept of the line to three
BigorU [14]

Answer:

D. y=-0.927x+13.634

Step-by-step explanation:

We graph the points on the graph. The graph is attached.

Let us take two points (1, 14) and (15, 1), and calculate the slope mbetween them <em>(we choose these points because the line passing through them will be the best fit for all points) </em>

m=\frac{14-1}{1-15} =\frac{13}{-14} =-0.9286

Thus we have the equation

y=-0.9286x+b

Let us now calculate b from the point (1,14)

14=-0.9286(1)+b

b=14.9286

So the equation we get is

y=-0.9286x+14.9286

Let us now turn to the choices given and see which choice is closest to our equation: we see that choice D. y=-0.927x+13.634 is the closest one, so we pick it.

4 0
3 years ago
The set {3, 5, ?} could not be the sides of a triangle.<br><br> 2<br> 7<br> 3<br> 5
tresset_1 [31]
7 and 2 cannot be the lengths as on a triangle they're two equal side so two 3s or two 5s
6 0
3 years ago
Read 2 more answers
The point A has coordinates (-5,6) What point do we get when we reflect point A across the x-axis?
elena-s [515]

Answer:

(-5,-6)

Step-by-step explanation:

smart

3 0
3 years ago
At a coffee shop, the first 100 customers'
Rudiy27

Answer:

so there is a 5% change of or ordering a large cold drink

Step-by-step explanation:

first add the total of all drinks

5+48+22+8+12+5=100

the amount of large drinks that are cold are 5

so there is a 5% change of ordering a large cold drink

8 0
1 year ago
Help plssss and thank you
dimaraw [331]

Answer:

y=\frac{1}{4}x +3

Step-by-step explanation:

slope (rise over run) choose 2 points that are easy to figure out. Count up and over to get the slope

(0,3) and (4,4)

3 to 4 is 1

0 to 4 is 4

slope is 1/4

y intercept is b- so +3

y=y=\frac{1}{4} x+3

5 0
3 years ago
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