Friday
August 29, 2014

# Posts by PsyDAG

Total # Posts: 18,021

STAT
Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
October 13, 2013

STAT
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. http://drdavespsychologypage.homestead.com/Odds__Figuring.pdf
October 12, 2013

STAT
Use process from previous post.
October 12, 2013

STAT
Use same process as in previous post.
October 12, 2013

STAT
Z = (score-mean)/SD variance = SD^2 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
October 12, 2013

STAT
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.04) for your Z score. Z = (score-mean)/SD
October 12, 2013

STAT
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z scores.
October 12, 2013

STAT
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
October 12, 2013

maths
The odd numbers > 1 are 3 and 5 on a die. 2/6 = ?
October 10, 2013

Science
In a restricted space, more gas particles leads to increased air pressure.
October 9, 2013

English
Have ever seen the statue of "The Thinker"?
October 9, 2013

Math
Right.
October 9, 2013

math (?)
What frequency table? Math would decrease, while science would increase.
October 9, 2013

math
50 - (18-7) - (37-7) = ?
October 9, 2013

math
Assuming that "all the way around the outside" is the whole perimeter: 2(98) + 2(98/3) = ?
October 9, 2013

Math-Algebra
http://www.direct.gov.uk/prod_consum_dg/groups/dg_digitalassets/@dg/@en/@motor/documents/digitalasset/dg_188029.pdf
October 9, 2013

statistics
Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
October 9, 2013

GEN 105 Personality abd Learning styles
October 8, 2013

Psychology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results.
October 8, 2013

Psychology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. It sounds like a classical experiment.
October 8, 2013

psychology (?)
What are your choices? Is there a stick or other equipment available? Is there another chimp that could cooperate in reaching the bananas?
October 8, 2013

Statistics
SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n
October 8, 2013

You're welcome.
October 8, 2013

1. wouldn't know ("puzzled all day") 2. doesn't see self as old ("young girl who smiled at him")
October 8, 2013

biology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. Extraneous variables — other than the independent ...
October 8, 2013

algebra (?)
There is no a, b or D shown in the equation. x^2 + 4x + 4 = (x+2)^2
October 8, 2013

Algebra II
If the slope is m in Steve's equation above, what is the position of m in the slope intercept form? That is the value of the slope.
October 8, 2013

Change percent to decimal and multiply. 1. .94 * 43 = 40.42 8. 6/90 = .066667 (convert to percentage by multiplying by 100) 9. 105/.05 = 2100 Your answers seem right, but you can check again by using decimals.
October 8, 2013

psychology
In classical conditioning, the unconditoned stimulus (US) is one which reflexively causes a response. One example is putting something into your mouth causes salivation. In this case the unconditioned response (UR) is the response to a US presented alone, the salivation. A ...
October 7, 2013

statistics (?)
Is the probability the same for all 4? What does the "it" refer to?
October 7, 2013

Math
A. 18/25 = x/9 B. x/100 = 2.64/9 Solve for x.
October 7, 2013

Health
What are you serving? Drinks? Ice Cream? Vegetables? How about Googling the specific substance and adding the key word, "calories," if that is what interests you? For example: https://www.google.com/search?client=safari&rls=en&q=vanilla+ice+cream+calorie+count&ie=UTF...
October 7, 2013

statistics
Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "...
October 7, 2013

algebra 1 (incomplete)
An equation needs an equal (=) sign. Where is yours?
October 7, 2013

Science (?)
The molecular formula for sucrose = C12H22O11. What "starch like above"?
October 7, 2013

Indicate your specific subject in the "School Subject" box, along with the specific problem in the content box, so those with expertise in the area will respond to the question.
October 7, 2013

Biology simple question
The wavelengths and amplitudes are what it is designed to measure?
October 7, 2013

Statistics
Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the z score.
October 7, 2013

STAT (?)
What following statements? Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text ...
October 7, 2013

pyschology
You're welcome!
October 7, 2013

psychology
Assuming that the behavior was modeled for you, social cognitive.
October 7, 2013

Statistics (incomplete)
You have no measure of variability. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities in terms of Z scores. Z scores is your score in terms of standard deviations. Z = (score-...
October 6, 2013

Science
Is it — or has it been — alive? Organic may refer to: Of or relating to an organism, a living entity Of or relating to an organ
October 6, 2013

Psychology
I'm not sure what you mean by "effect size." However, 29 is one standard deviation above the mean, which involves a difference of about 34%.
October 5, 2013

Math (?)
Neither do I. There seems to be some information missing. C = 2rπ Therefore: C/2π = r
October 5, 2013

Statistics
1a. Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance Range = highest score...
October 5, 2013

1. right 2. 40/3 = 13 1/3 yards
October 5, 2013

Math: Algebra II
d = s * t
October 5, 2013

Statistics
The first two need to be non-Jacks. First card = (52-4)/52 With one card gone, the second card = (51-4)/51 The third card needs to be the Jack = 4/50 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of ...
October 5, 2013

Math Poster Project
You need to chose what numbers to use and what math processes to involve. For the numbers between -1 and 1, you could use -.5 and 1/2. You do the rest.
October 5, 2013

health care policy
October 4, 2013

Statistics
How can you have a probability greater than 1? If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. "Forty-six percent of students eat breakfast and also floss their teeth."
October 4, 2013

Statistics
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
October 4, 2013

STATS
I would.
October 4, 2013

College Algebra
The largest area would be closest to a square. Divide 1932 by 4.
October 4, 2013

Science
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. What criteria are you going to use to measure life ...
October 4, 2013

Statistics
95% = mean ± 1.96 SD Insert values and calculate.
October 4, 2013

science
October 4, 2013

statistics
Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
October 4, 2013

Math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 8 * 25 * 23 = 4,600 When multiplication is indicated, how do you use subtraction? Do you have a typo?
October 3, 2013

Since this is not my area of expertise, I searched Google under the key words "effective aftercare plan for alcohol/drug abusers" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=effective+aftercare+plan+for+alcohol/drug+abusers&ie=...
October 3, 2013

Statistics
From your description, I'm not sure what is being asked. If it is "either blue or green," you are right. If it is just green ("green notepad is selected"), then 1/4 is correct.
October 3, 2013

psy331
How can we know "your own experiences in learning"?
October 3, 2013

pys
Subliminal messages are not that effective. Loud music and banter would distract from the message. You need to notice the message, so B.
October 3, 2013

psychology
I disagree. Perception is defined as the interpretation of a sensation.
October 3, 2013

Psychology
October 3, 2013

Psychology
The resting potential is increased, and the change must be to positive to promote an action potential. With this info, what would you pick?
October 3, 2013

math help (?)
We cannot graph on these posts. Also, to graph, we need two values for coordinates.
October 2, 2013

MATH (?)
Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. Not sure what you are asking with "how to make a ten." 9 + 7 = 16
October 2, 2013

math
An inequality is treated just like an equation, except that multiplying/dividing by a negative value reverses the carat (< to >). Add 7 to both sides.
October 2, 2013

math
7(1+2)
October 2, 2013

Math
No, the two sides are equal.
October 2, 2013

Psychology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results.
October 2, 2013

Stats
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.10) and its related Z score. Insert with other data in equation above and solve.
October 2, 2013

Science
Sí, sí, C.
October 2, 2013

Science
Did you multiply 20 * 17.16? What did you get? Not B. Feedback gives you information that your actions were (or were not) successful. Not B. Agree with A. With something as small as a paper clip, do you think a .05 gram variance is accurate?
October 2, 2013

math
Anything to the zero power = 1.
October 2, 2013

science (?)
Diagrams not available.
October 1, 2013

Math
d:4::32:56 d/4 = 32/56 Multiply both sides by 4. d = (4*32)/56 Finish calculations.
October 1, 2013

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events, not dividing. Fraction = desired event/total possibilities die = 3/6 Marble = 3/8
October 1, 2013

Statistics
Forty-six percent of students eat breakfast and also floss their teeth.
October 1, 2013

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .6 * .7 = ?
October 1, 2013

Statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. First shirt = category/total = 11/30 Second shirt, since one XL shirt is gone = 10/29 Third shirt, since two XL are gone = 9/28 ...
October 1, 2013

algebra1
5f + 7 ≤ 22 An inequality is treated just like an equation, except that multiplying/dividing by a negative value reverses the carat (< to >). Subtract 7 from both sides, then divide both sides by 5.
October 1, 2013

Math
The number of toothpicks increase by 2 each time --> n + 2?
September 30, 2013

Math
From the way you state the problem, in 5 years Chen will be 5 and his father will be 30. That won't be half. Otherwise: (x+25) = 2(x+5) Solve for x, then x+25 and x+5.
September 30, 2013

math
A minus times a minus = positive, so negative value squared would be positive. 2* 3/-4* 3/-4 = 2 * 9/16 = 9/8 14 * -1/3 * -1/3 = 14 *1/9 = 14/9 (9/8-4/3)/(14/9) Find common denominator to evaluate further.
September 30, 2013

Math
-3n + 24 < -17 -3n The -3n's cancel each other out, so it is unsolvable.
September 30, 2013

Statistics
1. SUV = .12, V = .24. .12 + .24 ≠ .54 2. right 3. right, however, there is a problem with the missing .10. If it is included, it would be (1-.38)^3. = .62^3 = .388244 4. .16 + .16^2 + .16^3 = .238328 5. again to include the .10, (1-.12)^2 = .88^2 = .7744
September 30, 2013

Statistics
Probabilities only add to .90. Is the remaining .10 people who decided not to rent, or do you have a typo? 1. Either-or probabilities are found by adding the individual probabilities. 2. .16 + .12 + .24 = ? 3. If the events are independent, the probability of both/all events ...
September 30, 2013

pre algebra
Value = Principal(1+rate)^years Value = 1000(1+.06)^5 Solve for value.
September 30, 2013

Dice Probability
There is only one #2 and one #3 on each die. 1/6 * 1/6 = 1/36
September 30, 2013

Beginners Spanish
¿Hay cuánta tarea hoy? But I would rather ask: ¿Tengo que hacerlos?
September 30, 2013

mitx (??)
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. It would help if you proofread your questions before you posted them. No figure available. Pressure values missing.
September 29, 2013

Stats/ Probability
Probability of NOT getting a 1 = 5/6, getting a 1 = 1/6. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. For five tosses: (5/6)^4 * 1/6 = ?
September 29, 2013

Math
Since this is not my area of expertise, I searched Google under the key words "distributive property of rational numbers" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=distributive+property+of+rational+numbers&ie=UTF-8&oe=UTF-8 ...
September 29, 2013

Math
Equals about,"≈" (found with option and x)
September 29, 2013

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