Friday
May 6, 2016

Posts by PsyDAG

Total # Posts: 21,663

statistics
Median = 50th percentile
October 3, 2015

Gr.11 Biology
Since it is a recessive X-linked gene, the father definitely does not have the MD gene. Since the mother does not have MD, she is heterozygous. There is a 50% chance of the other boys getting the MD gene and the disease and a 50% chance of the daughters being carriers, but no ...
October 3, 2015

science
Bone and muscle?
October 3, 2015

AP Statisics
Since this is not my area of expertise, I searched Google under the key words "ACT SAT conversion" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=sat+act+conversion&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
October 2, 2015

Statistics
It would help if you proofread your questions before you posted them. "One bond is chosen risk?"
October 2, 2015

Statistics
1 - .80 = ?
October 2, 2015

Statistics
53 * .27 = ?
October 1, 2015

Algebra
L = W + 24 2L + 2W = 128 Substitute W + 24 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
October 1, 2015

algebra
Q = 44 - D 10D + 25Q = $7.40 Substitute 44-D for Q in the second equation and solve for D.
October 1, 2015

Statistics
X = (107+19+10)/(total frequency)
October 1, 2015

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.
October 1, 2015

Statistics
Frosh = (4+15)/grand total Member = (4+9)/grand total Either-or probabilities are found by adding the individual probabilities.
October 1, 2015

math fractions
11 * (2 2/3)/(1 4/7) = 11 * (8/3)/(11/7) = 11* 8/3 * 7/11 = ?
October 1, 2015

ratios
What is your question?
October 1, 2015

Math
$12 * 768/24 = ?
October 1, 2015

math
Multiply both by 1,000,000. 27/9 = 3
September 30, 2015

math
Find the mean first = sum of scores/number of scores. Range = highest score - lowest Add the two values.
September 30, 2015

Math (?)
Complete
September 29, 2015

statistics
How many players on the team?
September 29, 2015

math
What is the length of the pieces?
September 29, 2015

maths
Use the Chi-square (X^2) method. X^2 = ∑ (O-E)^2/E, where O = observed frequency and E = expected frequency. ∑ = sum of all the cells. E = (column total * row total)/grand total df = n - 1, where n = number of cells Look up value in X^2 table in the back of your ...
September 29, 2015

Math
W = M + 6
September 29, 2015

math
$4,250,000 - $1,075,000 = ? This is a positively skewed distribution.
September 28, 2015

math
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.
September 28, 2015

psychological test and measurements
disagree.
September 28, 2015

math
9. r = d/t For d, multiply both sides by t. 10. y = 3x - 10 How did you get 7x? 3. (P - 21)/2 = w
September 28, 2015

Math
Divide 274 by (3+7+11) = 13.05 3 * 13.05 = ? 7 * 13.05 = ? 11 * 13.05 = ?
September 28, 2015

Math
If you are just concerned only with your class and measure the whole class, it is the population. If you want to generalize results to whole school or all students, you have a sample. I hope this helps.
September 28, 2015

fundamentals math
Are you allowed to use the table in your statistics text labeled something like "areas under normal distribution"?
September 27, 2015

math
1. $40 + $1x 2. $6x 3. You do this.
September 27, 2015

math
Math is good, but online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.
September 27, 2015

math
1.06x = 57.24 Solve for x for sale price. (1-.4)x = sale price Solve for x for full price.
September 27, 2015

math
G = E + 2 (G+5) + (E+5) = 42 Substitute E+2 for G in the second equation and solve for E. Insert that value into the first equation to solve for G. Check by putting both values into the second equation.
September 27, 2015

Math
Hundreds digit has to be 3. If there is another 3, then the third digit = 6. 363 or 336
September 27, 2015

math
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.
September 27, 2015

Math
27.75/2.5 = ?
September 26, 2015

Math
-5 + 24 - 28 = ?
September 25, 2015

STAT
Ho: mean1 = mean2 Ha: mean1 > mean2 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...
September 25, 2015

Learning Behaviors
Since this is not my area of expertise, I searched Google under the key words "opponent process theory of solomon and corbit" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=opponent+process+theory+of+solomon+and+corbit&ie=UTF-8&oe...
September 24, 2015

math
Here is one, a simple method. .37(27.6 + 15.9) = ?
September 24, 2015

science
Since this is not my area of expertise, I searched Google under the key words "liver functions" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=liver+functions&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
September 24, 2015

science
Google "photosynthesis."
September 24, 2015

Maths
50 + (3*5) = ?
September 23, 2015

Algebra 1
1 4/5 = 1.8 1 2/3 = 1.67 2 is right.
September 23, 2015

math
Absolute value is the value regardless of sign.
September 23, 2015

Science
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.
September 23, 2015

Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
September 23, 2015

math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (7^6)/7 = 7^5
September 22, 2015

Mathematics (I really need help)
1/100
September 22, 2015

math
Right
September 22, 2015

maths
h = 4k h - k = 36 Substitute 4k for h in the second equation and solve for k. Insert that value into the first equation to solve for h. Check by putting both values into the second equation.
September 22, 2015

math
Right.
September 22, 2015

Science
Control is amount of water in tanks. Otherwise correct.
September 22, 2015

Science
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 later post.
September 22, 2015

math
Get rid of parentheses. 2x^2-5x+9-0.5x^2+7x-3 = Combine like terms. 1.5x^2 + 2x + 6 Do the same with the second formula.
September 22, 2015

Science Can You Please Check
Agree with all.
September 22, 2015

science
What is your question?
September 22, 2015

Math
https://www.google.com/search?client=safari&rls=en&q=Algebra+addition+properties+and+subtraction+rules&ie=UTF-8&oe=UTF-8&gws_rd=ssl
September 21, 2015

Math
Mistake? I would estimate 220.
September 21, 2015

Education(?)
Maybe, if you explain what RTI is, we might be able to help.
September 21, 2015

math
Cannot draw graphs on these posts.
September 21, 2015

science
What reaction?
September 21, 2015

probability
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 (.20) and its Z score. Insert data into above equation. 1 - .20 = ?
September 21, 2015

Math (partial)
3. Add 33 to both sides. 5. Subtract 7 from both sides.
September 21, 2015

math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Assuming that you mean (y^4)(y^3) with the numerals as exponents. When multiplying with the same base, the exponents are added. (y^4)(y^3) = y^7
September 21, 2015

Math
m + (-13) = -18 m -13 = -18 m = -5
September 21, 2015

English
What is you question?
September 21, 2015

Business Statistics
With you limited data, the best estimate is 350 hours. If you want a probability statement, P = mean ± Z (SEm) SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/...
September 20, 2015

Statistics
It is one of the eleven numbers.
September 20, 2015

Algebra
It would help if you proofread your questions before you posted them. Do you really mean "4 ft by 10 in long"? If so, 10 inches is the width. If that is really what you mean 40/4 = 10.
September 20, 2015

Math
Inadequate data.
September 20, 2015

science
What is your question?
September 20, 2015

Science
Since when is water volume measured in meters? With the same volume of each water, (10+90)/2 = ?
September 20, 2015

English
Have you tried reading the story? Are you talking about the "White Knight Chronicles"? If so, Google that title.
September 20, 2015

Science
What distance?
September 20, 2015

MATH
Multiply both sides of the equation by x.
September 19, 2015

science
What is your question?
September 19, 2015

math
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though. Online, “*” is used to indicate multiplication to avoid confusion with “x&#...
September 19, 2015

Math
Looks good to me.
September 19, 2015

Math
7/5 = x/35 Solve for x.
September 19, 2015

Biology
Need to know dominance factors of genotype to gauge percents of phenotype.
September 19, 2015

Psychology
It would go from upper left to lower right in a moderately loose pattern.
September 18, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "models in science" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=%22models+in+science%22&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
September 18, 2015

Algebra
Not shown. Cannot copy and paste here.
September 18, 2015

math
Multiply both sides by 8. 3. x + 56 = -80 5. 4x - 40 = -3x +16 6. Get rid of parentheses. 3x - 12 - x - 5 = 2x + 11 Combine like terms and solve for x. However, unless you have a typo, #6 is unsolvable.
September 17, 2015

community psychology
What is your hypothesis?
September 17, 2015

science
agree
September 17, 2015

Math
(42-10)/42 = ?
September 17, 2015

Math
9/(5+1) = 1.5 1.5 * 5 = 7.5 1.5 * 1 = 1.5 7.5 + 1.5 = 9
September 17, 2015

Math
area = a * base area/a = base 96/8 = ?
September 17, 2015

math
Let x = speed 3x = 2(x+19) Solve for x.
September 16, 2015

Science
Right
September 16, 2015

Science
Agree
September 16, 2015

college algebra
Consider a country with only 100 people. What do you think their total emissions would be?
September 16, 2015

maths
Factors to (x-6)(x+1)
September 16, 2015

college algebra
It would help to relate to number of drivers in each country, not just per capita.
September 16, 2015

college algebra
94,848/128,000,000 = x/US population Insert data and solve for x.
September 16, 2015

biology (hannah)
If you don't know, do not respond. Your response indicates that the post was already answered.
September 15, 2015

biology
Since this is not my area of expertise, I searched Google under the key words "rocks storing carbon" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=rocks+storing+carbon&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
September 15, 2015

stats
Z = (score-mean)/SD Insert values and calculate.
September 15, 2015

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