# Posts by Angela

Total # Posts: 1,722

statistics
With n=13 and p= 0.7, find the binomial probability p(9) by using a binomial probability table. If np> and nq> 5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial, if np<5 or nq<5 then state that the ...

statistics
A clinical trial tests a method designed to increase the probability of conceiving a girl. In a study 306 babies were born, and 174 of them were girls. the sample data with a 0.01 significance level to test the claim that with this method, the probability of being a girl is ...

math
I do not understand how the odds of drawing a queen from a deck of cards is 3to1

statistics
IQ scores were obtained from randomly selected couples.For 20 such pairs of people, the linear correlation coefficient is 0.881 and the equation of the regression line is y= -6.93+ 10.8x, where x represents the IQ score of the husband. Also, the 20x values have a mean of 105....

stastistics
With n=13 and p=0.7, find the binomial probability P(9)by using a binomial probability table. If np> and nq>5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial,if np<5 of nq<5 then state that the normal ...

math, facorinf
Find the LCD 19/y6-12y5+36y4

statistics
Assume that human body temperature are normally distributed with a mean 98.21 F and a standard deviation of 0.61F a)A hospital uses 100.6 as the lowest temperature considered to be a fever. What percentage of normal and healthy persons would be considered to have a fever. Does...

statistics
Find the indicated critical value. z 0.04 Round to two decimal places as needed. My answer is 1.75 what do guys think.

statistics
Find the indicated z score. The graph depicts the standard distribution with a mean 0 and standard deviation 1. 0.945 My answer is 1.6901 but I am not sure if it is correct.

statistics
Assume that women's heights are normally distributed with a mean given by u=64.6 in and a standard deviation given by 0=2.8in. a) If 1 woman is randomly selected, find the probability that her height is less than 65in. b) If 49 women are randomly selected, find the ...

statistics
Assume that adults have IQ score that are normally distributed with a mean of 105 and a standard deviation 20. Find P, which is the IQ score separating the bottom 10% from the top 90%. Round to the nearest hundredth as needed.

statistics
In a region, 90% of the population have brown eyes. If 15 people are randomly selected, find the probability that at least 13 of them have brown eyes. Is it unusual to randomly select 15 people and find that at least 13 of them have brown eyes? Why or why not?

statistics
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use a binomial probabilities table to find the probability of x successes given the probability p of success in a given trial. n= 3 , x=1, p= 0.60

College algebra
-I need help solving this 72/(-4)+3(-4) _________ 5-(-5)

statistics
Assure that a procedure yields abinomial distribution with a trial repeated n times. Use abinomial probabilities table to find the probability if x sucesses given the probability of sucess of a given trial. n=6 x=0 p= 0.70

statistics
List below are the duration (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or hwy not? 73 95 238 199 166 268 198 374 260 235 382 339 ...

science
During standardization of permanganate solution using sodium oxalate, can the titration between Mno4- and C2o42- at 25degree celcius be perform? state the reasons.

statistics
Which is relatively better a score of 48 on psychology test or a score of 52 on an economics test, Scores on the psychology test have a mean of 87 and a standard deviation of 14. Scores on the economics test have a mean of 53 and a standard deviation of 8.

math
7-13(x-3)

Medical Coding
The patient is an 18-day old baby girl admitted after it was noticed she was placed on intravenous Cefotaxime and Ampicillin, later changed to Cefotaxime and Clindamycin. A culture taken from the umbilical corstump grew Straphylococcus aureus and Grouo H streptocooccus. After ...

Algebra
If 3t – 7 = 5t, then 6t =

Chemistry
What is the balanced chemical equation for Sr(NO3)2 + Na2PO4

2NH(g) + 2.5O2(g) ---><--- 2NO(g) + H2O(g) + Heat

Psychology
Explanation of proactive and retroactive interference and how you might counteract their effects while studying in order to facilitate maximum retention via long-term memory

math
write the verbal rule for the pattern 13, 14, 15, 16. Find the 15th term in each.

Chemistry II
What is the molar concentration of a solution produced by dissolving 1.234 g (NH4)2CrO4 in water and diluting to a total final volume of 300.0 ml? (mass of {NH4}2CrO4 is 152.03 g/mol).

math
without using an equal sign

math
write 6 less than 14 as an algebraic equation.

Algebra 1
Roses-R-Red sells its roses for a fixed down payment of \$20 plus \$0.75 per stem. Flower Power sells its roses for a fixed down payment of \$60 plus \$0.50 per stem. Which company offers the better deal? Which flower distributor would you use? why?

Chemistry
A mixture of miscible liquids containing 6 moles of A and 4 moles of B is distilled 1 atm (760 mm Hg) of pressure. The initial distillate was analyzed and found to contain 20 mole percent A and 80 mole percent B. a.) What are the partial vapor pressures of A and B in the ...

Chemistry
At 80 degrees Celsius, the vapor pressure of pure liquids x, y and z are 385, 190 and 66 mm Hg. what pressure must be exerted on the surface of the solution containing one mole of x, three moles of y, and two moles of z for the boiling point to begin at 80 degrees Celsius?

Chemistry
At 80 degrees Celsius, the vapor pressure of pure liquids x, y and z are 385, 190 and 66 mm Hg. what pressure must be exerted on the surface of the solution containing one mole of x, three moles of y, and two moles of z for the boiling point to begin at 80 degrees Celsius?

project management
REFER TO APPENDIX EXERCISE #4 IN CHAPTER 6 PROJECT MANAGEMENT COMPUTE EARLY, LATE AND SLACK TIMES

Psychology Help!
It wasn’t a test day, there were no oral reports due, and the class was getting ready to view a video. Regardless of the relaxed nature of the class, Baxter suddenly felt his muscles tighten and his heart rate increase as if he had had a sudden fright. It was happening ...

Psychology
i got it.. there are chances of a relapse.. so the answer is C!!!

Psychology
lectroconvulsive therapy may produce immediate relief from depression, but: A. may result in schizophrenia. B. can also change the hemisphericity of the brain. C. is not a long-term improvement. D. should not be used more than once. B

Psychology
The goal of psychodynamic therapy is to: A. change thought processes from negative and dysfunctional to positive and constructive. B. elevate unresolved conflicts and primitive impulses to conscious awareness effective for change. C. prepare the patient for appropriate drug ...

Psychology
"Honey, you know how we have always wanted to be in business for ourselves? Well, today I did it! I have rented a 3000 square foot business, hired six employees, ordered office furniture; we are in business." During the first three weeks, Todd was surprisingly ...

Psychology
It wasn’t a test day, there were no oral reports due, and the class was getting ready to view a video. Regardless of the relaxed nature of the class, Baxter suddenly felt his muscles tighten and his heart rate increase as if he had had a sudden fright. It was happening ...

math
using the formula W=33-(10.45 + 10sqrtv-v (33- T)/22 how do I find the wind chill temperatue for the following given: T=)c, V=15m/sec, T= -10C, V=20m/sec?

Psychology
The goal of psychodynamic therapy is to: A. change thought processes from negative and dysfunctional to positive and constructive. B. elevate unresolved conflicts and primitive impulses to conscious awareness effective for change. C. prepare the patient for appropriate drug ...

Psychology
got it C!!!!

Psychology
Electroconvulsive therapy may produce immediate relief from depression, but: A. may result in schizophrenia. B. can also change the hemisphericity of the brain. C. is not a long-term improvement. D. should not be used more than once. B

Psychology
A remarkable change occurred in mental institutions during the late 1950s. Patients became less agitated and many became "out patients" rather than custodial patents. These noticeable changes were the results of: A. antidepressants. B. shock therapy. C. ECT. D. ...

Psychology
According to behavioral treatment approaches, abnormal behavior is learned through: A. thoughts based on the perception of events. B. vicarious experiences. C. rewards and punishments. D. conflict experiences in early childhood. A

Psychology
"Honey, you know how we have always wanted to be in business for ourselves? Well, today I did it! I have rented a 3000 square foot business, hired six employees, ordered office furniture; we are in business." During the first three weeks, Todd was surprisingly ...

Psychology
"The origin of the abnormal behavior is not my concern. We will attack the behavior as it stands and work together to change it, thereby reducing the anxiety you are experiencing." This statement would be typical of the: A. medical perspective. B. psychoanalytic ...

Psychology- HELP!!!!
Trish is overweight. When you meet her for the first time, you feel contemptuous. This is an example of: A. stereotyping. B. ethnocentrism. C. discrimination. D. prejudice. A

Psychology- HELP!!!!
The salesperson in medication ads dresses to look like a doctor because: A. she has tested the product directly. B. the product was developed by physicians. C. FCC regulations demand this. D. the salesperson’s credibility is enhanced. D

Psychology
Observing what a person does under carefully controlled circumstances is a main feature of: A. the Thematic Apperception Test. B. behavioral assessment. C. Rorschach methods. D. the MMPI-2. C

Psychology- HELP!!!!
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is a test used primarily to measure: A. psychological disorders. B. spatial relationships. C. verbal intelligence. D. unconscious motives. A

Psychology- HELP!!!!
Survey research has revealed that one of the most important qualities that people look for in friends is: A. attractiveness. B. loyalty. C. independence. D. intelligence. B

Psychology- HELP!!!!
To compare one person’s test scores to the scores of all other people who took the test, psychologists must know something about the test’s: A. projective nature. B. subjective nature. C. length. D. norms. A

Psychology- HELP!!!!
Unlike psychodynamic approaches to personality, the learning approach emphasizes: A. latent personality structures. B. self-actualization processes. C. the outer person. D. biological traits B

Psychology- HELP!!!!
Shelby is a very outgoing person who likes being around other people and socializing with them. According to the Big Five trait theory of personality, Shelby would be considered to be: A. showing signs of her masculine archetypes in her collective unconscious. B. high on the ...

Marketing
A supermarket like woolworth will fall under which marketing segmentation? A. Demographic B.Psychographic C.Geographic

algebra
A store sold 29 sweatshirts. White ones cost \$ 9.95 and yellow ones cost \$ 11.50 If \$ 305.05 worth of sweatshirts were sold, how many of each were sold. Let x=the number of white sweatshirts Let y= the number of yellow sweat shirts Complete the system of equations. x+y= \$ x...

algebra
A non toxic floor wax can be made from lemon juice and food grade linseed oil. the amount of oil should be twice the amount of lemon juice. how much of each ingredient is needed to make 36 ounces of floor wax. let x represent the number of ounces of lemon juice and y ...

algebra
Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this problem and this is what I came up with. x+3y=5 x+4y=20 7y=15 y=7/15 and x= (5+y)/4 (5+7/15)/2 2/15 x=2/15 x=2/15, y=7/15 I would like for someone to check to see if it is correct.

algebra
\$ 5900 is invested, part of it at 12% and part of it at 8%. For a certain year, the total yield is \$ 596.00. How much was invested at each rate.

algebra
Solve the given system by the substitution method. 2x+y=6, 5x-2y=6

American government
I am to draft a paper that critically analyzes a current domestic or foreign political issue of importance to the United States. I want to write about the war on terror after the September 11, attacks. Does anyone think this would be a good topic. If not does anyone have any ...

Chemistry
In accordance with Hess's Law, manipulate the following equations and their change in Hrxn to calculate change in Hrxn's for the reaction HClO4 + NH3 N NH4ClO4... HClO4(aq)+ LiOH(aq)¨ LiClO4(aq)+H2O(l) CH3COOH(aq)+ NH3(aq) ...

Chemistry
In accordance with Hessfs Law, manipulate the following equations and their ƒ¢Hrxnfs to calculate ƒ¢Hrxn for the reaction HClO4 + NH3 ¨ NH4ClO4... HClO4(aq)+ LiOH(aq) ¨ LiClO4(aq)+H2O(l) CH3COOH(aq)+ NH3(aq) ¨ ...

Chemistry
Thank You!!!

Chemistry
Final temp was 27.35 degrees celsius

Chemistry
It just says, both solutions were initially 21.31 degrees Celsius, not 23.3 1 and specific heat was 4.18 J/g degrees Celsius.

Chemistry
27. 0 mL of 1.00 M HClO4 are mixed with 27.0 mL of 1.00 M LiOH in a coffee cup calorimeter. The calorimeter constant is 28.1 J/Celsius. Both were initialized at 23.31 degrees Celsius. Calculate change Hrxn (in kJ/mol) for the reaction.

government
Hello, I am to write a paper that critically analyzes a current,domestic or foreign political issue of importance to the United States. I want to write about the war in Iraq. If that is not correct do someone have any suggestions on a topic.

math compound interestt
calcualte the compound amount afterr 5 years for an investment of \$7,700 at 6% interest compounded quarterly

government
What is the current status of campaign finance reform?

Chemistry 2
What is the predominant intermolecular force responsible for the dissolution of the hydrophilic end of soap in water? Using dashed lines, illustrate where the intermolecular force occurs between atoms in adjacent molecules? Lone pair electrons have been omitted in the ...

Chemistry
A hard water sample contains 121 mg of CaCO3 per liter of water. Calculate the mass of Na3Po4 needed to remove all Ca^2+ ions from 2.50 L of the water sample?

American government
I am to develop a policy to increase voter turnout. It is to be a powerpoint presentation. I want to addresses such things as online voting, lowering the voter, and early voting. I am not sure if this is the right way to go. Can someone please help me.

tony towing borrows of \$12,250 at 9.5% interest for 320 days if bank use exact interest method how much interest will the bank collect? Round to nearest cent

Chemistry 2
If 1.0 mL of an unknown liquid was added to a flask instead of 6mL, would that change the calculated molar mass of the unknown liquid?

Chemistry 2
If 1.0 mL of an unknown liquid was added to a flask instead of 6mL, would that change the calculated molar mass of the unknown liquid?

Chemistry 2
If 1.0 mL of an unknown liquid was added to a flask instead of 6mL, would that change the calculated molar mass of the unknown liquid?

Psychology
My answer was correct the 1st time it was A . it is not C

Psychology
Verbal skills and muscular coordination have been observed to improve in women when: A. estrogen levels are relatively high. B. they are exposed to experiences requiring high level skills. C. pressure to perform is reduced. D. calcium levels are increased. C

Psychology- HELP!!!!
thanks

Psychology- HELP!!!!
Verbal skills and muscular coordination have been observed to improve in women when: A. estrogen levels are relatively high. B. they are exposed to experiences requiring high level skills. C. pressure to perform is reduced. D. calcium levels are increased. A

Psychology
thanks

Psychology
Donnie was on the verge of experiencing road rage. The teenagers in front of him were reckless and disrespectful. Suddenly he realized that one of the boys was his brother and he began to laugh. Donnie's emotional response is best explained by: A. the James-Lange Theory of...

Psychology
Verbal skills and muscular coordination have been observed to improve in women when: A. estrogen levels are relatively high. B. they are exposed to experiences requiring high level skills. C. pressure to perform is reduced. D. calcium levels are increased. A

Psychology
When applying Maslow's Hierarchy of Needs it is important to understand which of the following? A. Lower level needs must often be met before higher levels can be considered. B. Lower level needs can be inserted at any point. C. Self-actualization is seldom approached by ...

Psychology
Verbal skills and muscular coordination have been observed to improve in women when: A. estrogen levels are relatively high. B. they are exposed to experiences requiring high level skills. C. pressure to perform is reduced. D. calcium levels are increased. A

Psychology
Donnie was on the verge of experiencing road rage. The teenagers in front of him were reckless and disrespectful. Suddenly he realized that one of the boys was his brother and he began to laugh. Donnie's emotional response is best explained by: A. the James-Lange Theory of...

Psychology
Verbal skills and muscular coordination have been observed to improve in women when: A. estrogen levels are relatively high. B. they are exposed to experiences requiring high level skills. C. pressure to perform is reduced. D. calcium levels are increased. A

Psychology
Donnie was on the verge of experiencing road rage. The teenagers in front of him were reckless and disrespectful. Suddenly he realized that one of the boys was his brother and he began to laugh. Donnie's emotional response is best explained by: A. the James-Lange Theory of...

Psychology
thanks

Psychology
When applying Maslow's Hierarchy of Needs it is important to understand which of the following? A. Lower level needs must often be met before higher levels can be considered. B. Lower level needs can be inserted at any point. C. Self-actualization is seldom approached by ...

Psychology
Sandra is not really good at painting and drawing, but she loves to spend her spare time "dabbling" as she calls it. If her products are not successful according to aesthetic standards, why does she continue to draw and paint? A. She is attempting to reduce a primary...

Psychology
Expectation plays an important role in: A. cognitive approaches to motivation. B. drive-reduction approaches to motivation. C. incentive approaches to motivation. D. arousal approaches to motivation. D

Psychology
Some children require a "carrot on a stick" to get them to clean their room, behave well in public places, or make good grades. This suggests that: A. the incentive approach pulls the child toward the goal. B. the drive-reduction approach guides the child to re-...

Psychology
"I just can't make myself study ahead for a test. I work better under pressure. Perhaps it is the fear associated with waiting until the last minute that gets me going." This approach to motivation is best explained by: A. incentive approaches. B. drive-reduction...

Psychology
If motivation consists only of drive-reduction, what is the perfect state of a human being? A. Competitive, hard driving B. Not hungry, thirsty, no pain, absence of fear, basically a coach potato C. Constant change, always re-establishing homeostasis D. Gradual movement from ...

Psychology
thanks

Psychology
Sexual arousal in human beings is different from that of animals. It is clear that human sexual arousal can occur: A. only as the result of specific hormone changes. B. only during female ovulation. C. frequently in males, but seldom in females. D. as the result of many ...