56% of CCBC students are women. Find the probability that in a group of 10 randomly...

56% of CCBC students are women. Find the probability that in a group of 10 randomly selected CCBC students 6 are women.

2. Six cards are drawn from an ordinary pack without replacement. Find the probability of getting no spades?

3. The lengths of arrows in an archery competition follow a normal distribution with mean 26.6 inches and standard deviation 3.5 inches. Find the probability that an arrow is less than 28.0 inches long.

4. Find the mean and standard deviation of the number of Buddhists in a sample of 600 people from a large population where 24% of people are Buddhists.

5. The average household income in Somerset County is $242,000 with standard deviation $74,000. If 100 households are selected at random, find the probability that their mean income will be more than $250,000.

Expert Solution

orchestra answered 2 years ago

about 56% of all students have a laptop. randomly sample of 40 students, probability 1. exactly...

about 56% of all students have a laptop. randomly sample of 40 students, probability 1. exactly 16 have a laptop? 2. at least 18 have a laptop? 3. fewer than 18 have laptop?

Find the probability that a randomly chosen group of 9 people have no birthdays in common,...

Find the probability that a randomly chosen group of 9 people have no birthdays in common, but randomly chosen person #10 has a birthday in common with one of the first 9.

1. Birthday Problem. In a group of 10 students, what is the probability that a. Nobody...

1. Birthday Problem. In a group of 10 students, what is the probability that a. Nobody has birthday on the same date b. At least two have same birthday c. Exactly two have same birthday d. Exactly three have same birthday e. Two or three have same birthday f. At most three have same birthday

56 randomly selected male students at a commuter college were asked if they lived with their...

56 randomly selected male students at a commuter college were asked if they lived with their parents. 24 responded yes. 51 randomly selected female students at the same college were asked if they lived with their parents. 21 responded yes. The Dean of Students believes that more male students than female students live independently of their parents. Test the dean’s assumption. Use α=.05 1. Pooled sample proportion & compute the test statistic (Population 1 is Males, Population 2 is females)...

Suppose 56 out of 100 randomly selected students support the proposal that will shorten the semester...

Suppose 56 out of 100 randomly selected students support the proposal that will shorten the semester to 15 weeks. A. What is the sample proportion of supporting the proposal? B. Under what conditions can we use normal distribution to approximate the distribution of sample proportion? Verify if these conditions hold. C. Find a 95% confidence interval for the proportion of all students who support the proposal. D. Suppose no students are surveyed. What sample size does the investigator need to...

27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 49 college students are randomly selected, find the probability that

Retries 1Info Details -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef -abcdef 27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 49 college students are randomly selected, find the probability thata. Exactly 11 of them major in STEM.b. At most 14 of them major in STEM.c. At least 15 of them major in STEM.d. Between 10 and 14 (including 10 and 14) of them major in STEM.

find the probability for the binomial peobabilitty dostribution. according to superfreakonomics. the probability that a randomly...

find the probability for the binomial peobabilitty dostribution. according to superfreakonomics. the probability that a randomly selected patient who visits the emergency room will die within 1 year of the visit is 0.05. determine the probability that more than 3 of 30 randomly selected visitors to the ER died within 1 year. if the probability is less than 0.05 the event will be called unusual. is the event an unusual event? use the complement rule.

A committee of 2 women and 6 men is to be chosen randomly from a group...

A committee of 2 women and 6 men is to be chosen randomly from a group of 18 women and 13 men. a) What is the probability that "Ann" (female) and her friend "Bob" (male) are on the committee together? b) What is the probability that ``Ann''(female) and her friend ``Bob''(male) are on the committee and their friends ``Carla''(female) and ``Dan''(male) are also on the committee? c) Given that ``Carla'' and ``Dan'' have been chosen to be on the committee,...

The following data were collected from a survey of 10 randomly selected college students: Find the...

The following data were collected from a survey of 10 randomly selected college students: Find the mean, median, mode, variance, standard deviation, the five number summary report of the hours per week of the sample of students’ studied. Show your work. Student ID Facebook # hours of study per week 244701130 Yes 8 302896051 no 5 734077249 yes 11 891072704 yes 5 730265917 yes 9 894866913 no 6 644678646 no 1 369417477 yes 1 388511718 yes 2 554470987 no 1

56 randomly selected male students where asked if they lived with their parents. 24 responded yes....

56 randomly selected male students where asked if they lived with their parents. 24 responded yes. 51 randomly selected female students were asked if they lived with their parents. 21 responded yes. Test the claim that more males live with their parents using a 0.05 level of significance. Make sure you show and explain your work.

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