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mixer [17]
3 years ago
15

PLS HELP ME ASAP ON 12 (SHOW WORK!) + LOTS OF POINTS!!

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0
The first thing you do is cross multiply which is 3/4x=48 (3/4 = 0.75). Therfore you divide each side by .75. The left side cancels out. For the right side you divide 48 by .75 and gives you 64. x=64
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A researcher selects two samples of equal size and computes a mean difference of 1.0 between the two sample means. If the pooled
s344n2d4d5 [400]

Answer:

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

Step-by-step explanation:

Previous concepts

Cohen’s D is a an statistical measure in order to analyze effect size for a given condition compared to other. For example can be used if we can check if one method A has a better effect than another method B in a specific situation.

Solution to the problem

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

7 0
3 years ago
What is the answer for -5x-8=3x+10
SIZIF [17.4K]

Answer:

x=− 9 /4

​or  

=−2.250

Step-by-step explanation:

4 0
2 years ago
Please help me on this math I have been trying to solve it but I can't please please help me!!!!!!​
ludmilkaskok [199]

Answer:The first table would be a proportional relationship.

Step-by-step explanation:

It's the only table with a constant, which is required in a proportional relationship. The constant would be 1300 which you can find by divided the two numbers in each row.

7 0
2 years ago
What is 12% of 1350?
antoniya [11.8K]
162 is the answer to your question siskjsskjajanajajajsjskskaiw
3 0
3 years ago
Read 2 more answers
What is 9/10 divided by 7/10
belka [17]
It's 9/7 but you can try simplifying after that
4 0
3 years ago
Read 2 more answers
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