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kompoz [17]
3 years ago
14

HL. 2. What is an equation of a line that is parallel to the yaxis and contains the

Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0

Answer: Hi the answer is c.x-3

Step-by-step explanation:

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3 years ago
If you have a chance to win $500 for drawing a card of 10 of any suit from a standard deck of cards, what is the value of expect
Dimas [21]
The expected value is $38.46.

The probability of drawing a 10 from any suit is 4/52.  Multiply this by the earnings, 500:

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6 0
3 years ago
A researcher working in a Human Resources department was interested in gender and sales figures so he conducted a t-test. The me
irina1246 [14]

Answer:

d = \frac{78.24 -66.25}{\sqrt{\frac{7^2 +7^2}{2}}}= 1.713

For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.

And on this case 1.713>0.8 so we have a large effect size

This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.

Step-by-step explanation:

Previous concepts

The Effect size is a "quantitative measure of the magnitude of the experimenter effect. "

The Cohen's d effect size is given by  the following formula:

d = \frac{\bar X_1 -\bar X_2}{\sqrt{\frac{s^2_1 +s^2_2}{2}}}

Solution to the problem

And for this case we can assume:

\bar X_1 =78.24 the mean for females

\bar X_2 =66.25 the mean for males

s_1 = s_2= 7 represent the deviations for both groups

And if we replace we got:

d = \frac{78.24 -66.25}{\sqrt{\frac{7^2 +7^2}{2}}}= 1.713

For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.

And on this case 1.713>0.8 so we have a large effect size

This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.

4 0
3 years ago
What is the value of x in the equation 1/5 x-2/3 y=30 when y =15
laiz [17]
First replace y with 15.
1/5x-10=30
Then just solve from there.
x=200
4 0
3 years ago
Read 2 more answers
a train moves at a constant speed of 8 Miles every four minutes fill in the table below to show how far the train according to d
WITCHER [35]

Answer: Well theres no table added but it probably looks like this

X               Y

8mph     4 min

2mph     1 min

I think you can do the rest

4 0
2 years ago
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