Thursday
May 5, 2016

Posts by PsyDAG

Total # Posts: 21,639

math
To find it, just look at it. If you are asking for probabilities: even number = 1/2 >6 = 7 or 8, each = 1/8 Either-or probabilities are found by adding the individual probabilities.
April 23, 2016

Math
Put the value to zero for each one in the equation.
April 23, 2016

Math
Good!
April 23, 2016

science
Since this is not my area of expertise, I searched Google under the key words "function of pore in a cell membrane" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=function+of+pore+in+a+cell+membrane&ie=UTF-8&oe=UTF-8&gws_rd=ssl In...
April 23, 2016

science (?)
What is your question?
April 22, 2016

Stat
a. Either-or probabilities are found by adding the individual probabilities. 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. Add the two. b. If the events ...
April 22, 2016

Science
No images. You cannot copy and paste here. Besides, 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.
April 22, 2016

science
Since this is not my area of expertise, I searched Google under the key words "titanium reacts with oxygen" to get these possible sources: https://search.yahoo.com/yhs/search?p=titanium+reacts+with+oxygen&ei=UTF-8&hspart=mozilla&hsimp=yhs-002 In the future, you can ...
April 22, 2016

Math: Statistics
It would depend on what level of significance you are using. Typically it is P ≤ .05. If you are using this cut-off point and the level you found was .061, you should say that the relationship was a chance one.
April 22, 2016

math (?)
You do not indicate how length is related to either width or height or the volume.
April 22, 2016

Math- I'd really appreciate it if you could help!!
We would appreciate it if you could state the problem without all the dollar signs ($).
April 21, 2016

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. Also post with the same name. See your later post.
April 21, 2016

mathes
How do you define "under age"… less than the mean? Mean = sum of scores/number of scores I'll let you do the calculations.
April 21, 2016

STAT
99% = mean ± Z (SEm) SEm = SD/√n Z for ±.005 = 2.575 Calculate.
April 21, 2016

mathematics
Lacking data. What is its shape?
April 21, 2016

Statistical work
Z = (score-mean)/SD Use table In back of text labeled area under normal distribution. C. Either-or probabilities found by adding individual probabilities. D,E. Both probabilities found by multiplying individual probabilities.
April 21, 2016

Stat HW for.
1b. 1/4 = .25 Probability of both found by multiplying individual probabilities. E. .5 * (1-.25) = ?
April 21, 2016

Statistics
Z = (mean-mean)/SEm SEm = SD/sqrt n Use table in back of text labeled area under normal distribution.
April 21, 2016

Statistical concept 68-95-99.7
Don't repeat posts. It wastes our time responding to them. See your later post.
April 21, 2016

Maths!
Lacking data. How many colors/marbles?
April 21, 2016

Stat
Z = (score-mean)/SD Use table labeled area under normal distribution in the back of your text. Either-or probabilities found by adding individual probabilities. Both probabilities found by multiplying individual probabilities.
April 21, 2016

3rd grade math
Yes
April 20, 2016

MATH
A more exact answer to cups = 5/(5+1+3+2) = 5 /11 = .45
April 20, 2016

MATH
3/(6+1+2+3) = ?
April 20, 2016

MATH!
Boys< 30-16
April 20, 2016

MATH
Without the outlier, the mean (which functions as a balance point) would be lower.
April 20, 2016

math
2/5 * 150 = ?
April 20, 2016

Math
54/(7+2) = 6 Multiply the 7 and 2 by 6.
April 20, 2016

Math
See your later post.
April 20, 2016

Math
Second and third choices are correct. The correlation would only show straight line if there was perfect predictability (+1.00) for the positive trend.
April 20, 2016

math
2 * 3= ? 10 * 15 = ?
April 20, 2016

stats
Z = (52-50)/SEm SEm = SD/sqrt n Look up Z in table in back of your text labeled area under normal distribution.
April 20, 2016

math
Why do you divide the width by 4? Is That because the length is 1/4W?
April 20, 2016

math
You do not state relationship between width and length.
April 20, 2016

Maths
What is your question?
April 20, 2016

Math
Probability of 2 or more independent events occurring is found by multiplying the individual events Assuming replacement, P(both) = .08 * .08 At least one = one or two. Either-or probabilities are found by adding the individual probabilities. P(one) = .08 * .92 P(both) shown ...
April 19, 2016

math
Let X = tens and y = twenties X = 7 - y 10 X + 20 y = 100 Substitute 7-y for X in the second equation and solve for y, then use first equation to find x.
April 19, 2016

math help pls pls pls
0 no correlation
April 19, 2016

math
5/(30+12+5)=?
April 19, 2016

MaThS LITERACY; GEOGRAPHY;TOURISM AND ECONOMIC
Consult with your school counselor,who can help you estimate your interests and abilities and the occupations they relate to.
April 19, 2016

Algebra
P.S. It is better to indicate specific topic in subject space to get a tutor who knows the subject. You lucked out this time.
April 19, 2016

School
B = 3C 2B + 4C = 30 Substitute 3C for B in the second equation to solve for C, then insert value in the first equation to find B.
April 19, 2016

math
(1-.10)X = 36 Solve for x.
April 19, 2016

math
2*24*2 minutes less.
April 19, 2016

Math
Cannot drag on these posts.
April 18, 2016

math
1/2 + 1/6 = 6/12 + 2/12 = 8/12 = 2/3 Neither do I. Probably a typo in the answer key.
April 18, 2016

Maths
(4 * 2) +1 = 9
April 18, 2016

Math needs help
Indicate specific topic so tutor with the right knowledge will respond.
April 18, 2016

Math
(12 - 7)/12 = ?
April 18, 2016

English
What is your question?
April 18, 2016

English
Either
April 17, 2016

Bio
Haploid
April 17, 2016

Scince
What are your choices?
April 17, 2016

maths littercy ,agricultural science ,life science ,tourism , life orientatiom, ndebele and english
Consult your school counselor, who can help you assess your abilities and interests along with recommending schools that will fit your needs.
April 17, 2016

stats
No data set. You can't copy and paste here.
April 17, 2016

history,maths literacey,english,xitsonga,religion,
Contact your school counselor.
April 17, 2016

Statistic
What is your question?
April 17, 2016

dramatic art .tourism. history and math lit
Contact your school counselor with this question.
April 17, 2016

Elementary Statistics
Z = (score-mean)/SEm SEm = SD/sqrt n Use same table.
April 16, 2016

Algebra
Let X = initiation fee X + 18m = 3950 X + 7m = 3125 Subtract second equation from first to solve for m. Insert value into either equation to solve for X.
April 16, 2016

science help pls pls
Under changing conditions
April 15, 2016

science help pls pls
Hydro- = water Geo- = ground
April 15, 2016

i really need help with science pls help
Disagree.
April 15, 2016

science help pls pls pls
Dwarf planet
April 15, 2016

algebra
We cannot measure your subjects to get the data.
April 14, 2016

Algebra
You did a good job. What's your confusion?
April 14, 2016

math
(1-7/8)*12 = ?
April 14, 2016

i really need help with science pls help
No diagram. Can't copy and paste here.
April 14, 2016

Math
Either-or probabilities are added. 10/20 + 3/20 + 5/20 = ?
April 14, 2016

Stats - Help!!!
Disagree.
April 14, 2016

Stats - Help!!!
Agree.
April 14, 2016

Stats - Help!!!
Agree with second choice.
April 14, 2016

Stats - Help!!!
Need goal before sample.
April 14, 2016

Maths Lit, Geography, English, LO, EGD, Afr.
Consult your school counselor who can help you define your goals according to your abilities and interests.
April 14, 2016

math
A = 6/8S 6A + 8S = 60 Substitute 6/8S for A in second equation and solve for S. Then use first equation to find A.
April 14, 2016

math
See your later post.
April 13, 2016

Stats
Since assignment is random, it is not C.
April 13, 2016

Stats
Agree. The blind condition will reduce probability of Jimenez treating them different.
April 13, 2016

stats
Use "areas under normal distribution" table in the back of your statistics text.
April 13, 2016

science (correct please)
2, 4 are wrong. The rest are right.
April 13, 2016

Statistics
Don't repeat questions. It wastes our time responding to multiples. See your later post.
April 13, 2016

Statistics
Don't repeat questions. It wastes our time responding to multiples. See your later post.
April 13, 2016

Science
1. Styrofoam insulates, copper conducts. 2. Warm air rises.
April 13, 2016

Urns and $ - Pre-Algebra
P (both) found by multiplying them. 1. P(red,red) = 12/20*8/13 = ? 2. P(1,10) = 5/18 * 6/(18-1) = ?
April 13, 2016

Physics needs help
Indicate specific area in subject heading.
April 13, 2016

Math
No parts shown. Cannot copy and paste here.
April 13, 2016

Algebra (Correction)
J + D + K = 320 Solve for D, then K.
April 12, 2016

Algebra
J = D + 20 K = D/2 J + D + K = ? (D+20) + D + D/2 = ?
April 12, 2016

Mathematics
We don't do your work for you. However, we will be glad to respond to your answers. Consult your text.
April 12, 2016

Health Plz help THX!!
Oxygen correct. Others unanswered or wrong. Seems like you are just guessing. Use your textbook.
April 12, 2016

science PLEASE CHECK MY ANSWERS
Disagree with first answer but not sure about second but guess at cast.
April 11, 2016

7th Grade Science
Those variations (mutations) that lead to survival in the environment continue. If not, those go to extinction.
April 11, 2016

science
Different, gas, solid or liquid. You supply why.
April 11, 2016

biology
The sperm and egg are each haploid.
April 11, 2016

Statistic
OK
April 11, 2016

Statistics
5,352/100,000 = ?
April 9, 2016

Statistics
26*26*10^3 = ?
April 9, 2016

Math
Any value to the zero power = 1
April 9, 2016

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.
April 9, 2016

math
let x = fiction books. 3x + x = 2000 Solve for x then 3x.
April 4, 2016

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