. A study by WPU showed that 50% of students attending an open house for the...
. A study by WPU showed that 50% of students attending an open house for the first time will return for future open houses. Suppose six students are selected at random, what is the probability that:
(a) Exactly two students will return?
(b) All six students will return?
(c) At least five students will return?
(d) At least one student will return?
(e) How many students would be expected to return for future open houses?
Homework Answers
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. A study by WPU showed that 50% of students attending an open
house for the...
A study by WPU showed that 50% of students attending an open house for the first...
A study by WPU showed that 50% of students attending an open house for the first time will return for future open houses. Suppose six students are selected at random, what is the probability that: (a) Exactly two students will return? (b) All six students will return? (c) At least five students will return? (d) At least one student will return? (e) How many students would be expected to return for future open houses?
3. A study by WPU showed that 50% of students attending an open house for the...
3. A study by WPU showed that 50% of students attending an open house for the first time will return for future open houses. Suppose six students are selected at random, what is the probability that: (a) Exactly two students will return? (b) All six students will return? (c) At least five students will return? (d) At least one student will return? (e) How many students would be expected to return for future open houses?
3. A study by WPU showed that 50% of students attending an open house for the...
3. A study by WPU showed that 50% of students attending an open house for the first time will return for future open houses. Suppose six students are selected at random, what is the probability that: (a) Exactly two students will return? (b) All six students will return? (c) At least five students will return? (d) At least one student will return? (e) How many students would be expected to return for future open houses?
A study by MSU showed that 50% of students attending an open house for the first...
A study by MSU showed that 50% of students attending an open house for the first time will return for future open houses. Suppose six students are selected at random, what is the probability that: (a) Exactly two students will return? (b) All six students will return? (c) At least five students will return? (d) At least one student will return? (e) How many students would be expected to return for future open houses?
1. Nordstrom stores conducted a study to examine the preferences of the color for women's shirts...
1. Nordstrom stores conducted a study to examine the preferences of the color for women's shirts with the following results ge 50 or older Age less than 5 White Black Brown Yellow Blue 20 50 60 130 30 40 70 90 120 60 (a) What is the probability that a randomly selected woman like a black case the best (b) What is the probability that brown or black case is the favorite color (c) Assuming a woman is less than...
2. A recent national study showed that approximately 45% of college students binge drink. Find the...
2. A recent national study showed that approximately 45% of college students binge drink. Find the probability among 8 randomly selected students that a. Exactly 4 students binge drink. b. At least 6 students binge drink.
A recent study showed that 50 percent of households in Syracuse have at least 2 cars....
A recent study showed that 50 percent of households in Syracuse have at least 2 cars. Let X denote a binomially distributed random variable that is the number of households that have at least 2 cars. Out of 16 randomly chosen households, what is the probability that exactly nine have at least 2 cars; at most six have at least 2 cars; anywhere from 8 to 12 have at least 2 cars?
A recent study showed that 50 percent of households in Syracuse have at least 2 cars....
A recent study showed that 50 percent of households in Syracuse have at least 2 cars. Let X denote a binomially distributed random variable that is the number of households that have at least 2 cars. Out of 16 randomly chosen households, what is the probability that a. exactly nine have at least 2 cars; b. at most six have at least 2 cars; c. anywhere from 8 to 12 have at least 2 cars?
2. A recent study by the University of Pittsburg showed that the average number of airplanes...
2. A recent study by the University of Pittsburg showed that the average number of airplanes flying over downtown Pittsburg is four per hour. Assume the passing of these airplanes is approximated by the Poisson distribution. (a) Find the probability that no airplanes flew over Pittsburg between 8am and 9am on Sunday. (b) Find the probability that exactly three airplanes flew during that time. (c) Find the probability that exactly four airplanes flew during that time (d) Find the probability...
The class registrations of 100 students are analyzed. It is found that 50 students study Applied...
The class registrations of 100 students are analyzed. It is found that 50 students study Applied Mechanics, 45 study Chemistry, and 15 studied both Applied Mechanics and Chemistry. (a) If one of these students is selected at random, find the probability that i. the student took applied mechanics or chemistry. ii. the student did not take either of these subjects. iii. the student took chemistry but not applied mechanics. (b) Are studying Applied Mechanics and studying Chemistry mutually exclusive events?...
3. A study by WPU showed that 50% of students attending an open house for the first time will return for future open houses. Suppose six students are selected at random, what is the probability that: (a) Exactly two students will return? (b) All six students will return? (c) At least five students will return? (d) At least one student will return? (e) How many students would be expected to return for future open houses?
1. Nordstrom stores conducted a study to examine the preferences of the color for women's shirts with the following results ge 50 or older Age less than 5 White Black Brown Yellow Blue 20 50 60 130 30 40 70 90 120 60 (a) What is the probability that a randomly selected woman like a black case the best (b) What is the probability that brown or black case is the favorite color (c) Assuming a woman is less than...
2. A recent national study showed that approximately 45% of college students binge drink. Find the probability among 8 randomly selected students that a. Exactly 4 students binge drink. b. At least 6 students binge drink.
2. A recent study by the University of Pittsburg showed that the average number of airplanes flying over downtown Pittsburg is four per hour. Assume the passing of these airplanes is approximated by the Poisson distribution. (a) Find the probability that no airplanes flew over Pittsburg between 8am and 9am on Sunday. (b) Find the probability that exactly three airplanes flew during that time. (c) Find the probability that exactly four airplanes flew during that time (d) Find the probability...
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