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posledela
3 years ago
15

Can someone please help me with this:) ​

Mathematics
1 answer:
madam [21]3 years ago
3 0

Answer:  c

Step-by-step explanation:

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The two-way frequency table below shows data on behavior of students and the use of positive phone calls home as an incentive fo
Gemiola [76]

Answer:

Step-by-step explanation:

Hello!

In statistics, the relative frequency is the percentage/ proportion of times a determined event has occurred in a given experiment.

In this exercise you have to calculate the relative frequencies of the observed student's behavior, given that they received positive phone calls as an incentive and the observed student's behavior, given that they didn't receive positive phone calls as an incentive.

If "x" represent the number of observations for the category (Desirable behavior and Undesirable behavior) of interest and "n" the total number of observations in each row (Phone call and No phone call), you can calculate the relative frequencies as: f(x)= x/n

For the students that received the phone call:

n= 19 + 9= 28

The student showed desirable behavior: f(x)= 19 / 28= 0.678= 0.68

The student showed undesirable behavior: f(x)= 9 / 28= 0.678= 0.32

For the students that didn't receive the phone call:

n= 8 + 6= 14

The student showed desirable behavior: f(x)= 8 / 14= 0.678= 0.57

The student showed undesirable behavior: f(x)= 6 / 14= 0.678= 0.428= 0.43

I hope this helps!

5 0
3 years ago
Is 10% of 10% of 100 the same as 20% of 100?
algol [13]
<span>Only if " 20% " is the same as " 10% of 10% " . What do you think ?</span>
5 0
3 years ago
Which equation represents a circle with a center at (2, -7) and a radius of<br> 4 units?
Bezzdna [24]

Answer:

(x+3)^2+(y-5)^2=16

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Inverse sine is used to find a given angle measure when we know the _ and the _​
andrey2020 [161]

Answer:

opposite side of an angle

hypotenuse

6 0
3 years ago
The table represents a linear function. Find the values of A and B.​
bazaltina [42]

Answer:

The answers are that a = -5 and b = 1

Step-by-step explanation:

In order to find A and B, we first need to find the equation of the line. We can do this by using two ordered pairs and the slope formula. For the purpose of this activity, I'l use (0, 5) and (-3, 11)

m(slope) = (y2 - y1)/(x2 - x1)

m = (11 - 5)/(-3 - 0)

m = 6/-3

m = -2

Now that we have this we can model this using point-slope form.

y - y1 = m(x - x1)

y - 5 = -2(x - 0)

y - 5 = -2x

y = -2x + 5

Now that we have the modeled equation we can use the ordered pair (a, 15) to solve for a.

y = -2x + 5

15 = -2(a) + 5

10 = -2a

-5 = a

And we can also solve for b using the ordered pair (2, b)

y = -2x + 5

b = -2(2) + 5

b = -4 + 5

b = 1

4 0
3 years ago
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