Probability

A medical research project examined the relationship between a subject’s weight and recovery time from a surgical procedure, as shown in the table below. Given that recovery takes over 7 days, what is the probability the patient is overweight? Answers: 73/200 =.365 200/146=1.37 146/200 = .7 ...continues

Math Problems...

Word problems are attached

5 coins are tossed (a)in how many ways will the first coin turn up heads and the last coin turn up tails ... Determine the number of ways of arranging the letters in the word handle ...

5 coins are tossed a)in how many ways will the first coin turn up heads and the last coin turn up tails b)draw a tree diagram to illustrate the different possibilities c)in hoe many ways will the 2nd , 3rd, and 4th coins all turn heads d)would the same possibilities arise if one coin is tossed 5 times in succession. 2)Det ...continues

Find a percentile from a known normal probability distribution

A newspaper article reported that people spend a mean of 6 hours per day watching TV, with a standard deviation of 1.9 hours. A psychologist would like to conduct interviews with the 15% of the population who spend the most time watching TV. She assumes that the daily time people spend watching TV is normally distributed. At ...continues

Probability

320 of the male students are smokers and 480 are non-smokers. 450 of the female students are smokers and 450 are none smokers. What is the probability that a male student and a female student, both chosen randomly, are both smokers? *see attachment*

Mean - Accprding to her Doctor, Mrs. Brown's Cholesterol level is higher than 5% of the....(see attachment for problem)

Accprding to her Doctor, Mrs. Brown's Cholesterol level is higher than 5% of the....(see attachment for problem)

Standard Deviation - For a study conducted by the research Department of a Pharmaceutical Company, 255 randomly selected ---(Problem is attached)

Standard Deviation - For a study conducted by the research Department of a Pharmaceutical Company, 255 randomly selected ---(Problem is attached)

Mean - A certain brokerage house wants to estimate the maean daily return on a certain stock. A random sample.... (See attached)

A certain brokerage house wants to estimate the maean daily return on a certain stock. A random sample.... (See attached)

Standard Deviation - For a new study conducted by a fitness magazine, 285 females were selected. For each, the mean daily calorie consumption... (See attached file for complete problem)

For a new study conducted by a fitness magazine, 285 females were selected. For each, the mean daily calorie consumption... (See attached file for complete problem)

Standard Deviation - In a comparative study of two new drugs, A and B, 225 patients were treated with drug A and 400 Patients wer treated with drug ......(Please see attached file)

In a comparative study of two new drugs, A and B, 225 patients were treated with drug A and 400 Patients wer treated with drug ......(Please see attached file)