A researcher wanted to test eight specific drugs and he had enough animals to test five drugs. How many groups of drugs can be tested? randomly

Q: Pablo randomly picks four marbles from a bag of eight marbles (five red ones, two green ones, and…

A: given,       Pablo randomly picks four marbles from a bag of eight marbles (five red ones, two green…

Q: You must select 3 individuals from a group of 5 for a conference. How many teams of 3 might you…

A:

Q: a) 10 samples of different Publishers are on display at an Open Day.                   Visitors are…

A: Total available sample n= 10 Number of samples to be selected r = 4

Q: A small-town mechanic says that 8% his customers come in for an oil change. When  1000 samples were…

A: Target population means, the set of elements that we want to know more about

Q: Two coins are randomly drawn from a coin pouch. If there are 4 dimes, 2 nickels, and a quarter, how…

A: The pouch contains 4 dimes, 2 nickels and one quarter. Two coins are randomly drawn from a pouch.

Q: In a random sample of 100 scholars, 47 scholars selected King for Vice President . If the total…

A:

Q: Two coins are randomly drawn from a coin pouch. If there are 4 dimes, 3 nickels, and a quarter, how…

A: The probability density function of X is obtained below:From the given information, number of coins…

Q: Four members from a 14 members committee are to be randomly selected to serve as a Chair, a…

A: The number of members is 14.

Q: To determine the number of fish in a lake, several researchers tagged 150 of the fish in a certain…

A: Let there are x fishes in the lake. Among x fishes 150 are tagged. Among 560 fishes 7 are tagged.

Q: Amarble is selected at random from a jar containing 2 red marbles, 3 yellow marbles, and 4 green…

A: GivenA jar containsNo.of red marbles=2No.of yellow marbles = 3No.of green marbles = 4Total no.of…

Q: A geologist has collected 15 specimens of basaltic rock and 15 specimens of granite. The geologist…

A: Given information: Given that a geologist has collected 15 specimens of basaltic rock and 15…

Q: A student must answer 3 out of 5 essay questions on a test. In how many different ways can the…

A: A student must answer 3 out of 5 essay questions on a test. In how many different ways can the…

Q: A paper bag contains three green,four brown and five yellow beads. To win a game, Zoe needs to draw…

A: Given, a paper bag contains 3 green, 4 brown and 5 yellow beads. so we have a total of 12 beads…

Q: How many ways can a researcher select 5 rats from 10 rats and assign each to a different test?

A: It is given a researcher select 5 rats from 10 rats and assign each to a different test.

Q: A district in the Ashanti region town has 102 towns and villages. If you interviewed everyone living…

A: Given that there are 102 towns and villages.  We consider a population when we want each and every…

Q: An environmental agency is analyzing water samples from 79 lakes for pollution.  Five of the lakes…

A:

Q: A pollster randomly selected 4 of 10 available people. How many different groups of 4 are possible?

A: Given,   A pollster randomly selected 4 of 10 available people.   The objective is to find how many…

Q: Pablo randomly picks four marbles from a bag of nine marbles (five red ones, three green ones, and…

A: Given,no.of red marbles =5no.of green marbles=3no.of yellow marbles=1total n.of marbles =9

Q: How many 5-card poker hands selected from an ordinary 52-card deck contain four cards of the same…

A: A standard deck of cards contains 52 cards, of which 26 are red, and 26 are black, 13 of which are:…

Q: Jay has 14 stat books. In how many different ways can he arrange 4 of them on a bookshelf?

A: Permutation is defined as an arrangement of objects in a definite order. The members or elements of…

Q: Three members of a jury will be randomly selected from five people. How many different combinations…

A:

Q: Six players are to be selected from an 11​-player baseball team to visit schools to support a summer…

A: No. Of total students = 11 No. Of player to select = 6.

Q: How many different 5-card hands are possible from a deck of 52 playing cards?

A: Topic- permutations and combinations

Q: ablo randomly picks four marbles from a bag of nine marbles (five red ones, three green ones, and…

A: number of red marbles=5 number of green marbles=3 number of yellow marbles=1   Total number of…

Q: a study with 5 groups, 6 samples each group, what are the degrees of freedom for the total, group,…

A: Given: Number of groups (k) = 5 Number of samples each group (n)=6

Q: A committee of 8 people randomly chooses 3 people in order to be president, vice president, and…

A: Total person = 8 to chosen = 3 Order = considered

Q: he wants to serve 3 bottles of zinfandel and serving order is important, how many ways are there to…

A: Given Number of zinfondel bottles z=11 Number of Merlot bottles m =7 Number of cobernet bottles c=13…

Q: A researcher wanted to test eight specific drugs and he had enough animals to test five drugs. How…

A: It is an important part of statistics. It is widely used.

Q: Pablo randomly picks four marbles from a bag of nine marbles (five red ones, two green ones, and two…

A: Given: Pablo randomly picks four marbles from a bag of nine marbles. There are 5, 2, 2, as red…

Q: There are eight swimmers competing in the 500 meter freestyle. In how many ways can they place in…

A:

Q: You are a professor of journalism and have 14 students in your class. How many ways can you line up…

A: Given,total no.of students=14

Q: From a group of 12 students, we want to select a random sample of 5 students to serve on a…

A: Given n=12 r=5

Q: In a large school, it was found that 71% of students are taking a math class, 72% of student are…

A: Given : In a large school, it was found that 71% of students are taking a math class, 72% of student…

Q: to determine the number of fish in a lake ,several researchers tagged 150 of the fish in a certain…

A: Let there are x fishes in the lake Among x fishes 150 are tagged  Among 560 fishes 7 are tagged.

Q: Pablo randomly picks five marbles from a bag of ten marbles (six red ones, two green ones, and two…

A: Given, For the first selection, Pablo picks five marbles of from a bag of ten marbles ( 6 red ones,…

Q: A college plans to interview 8 students for the possible offer of graduate assistantships. The…

A:

Q: An election ballot asks voters to select five city commissioners from a group of seventeen…

A: Combination rule:From a group of m items, n items can be chosen in,

Q: In order to conduct an​ experiment, 4 subjects are randomly selected from a group of 49 subjects.…

A: Given data, Number of subjects that are randomly chosen (r) = 4 Total subjects (n) = 49  How many…

Q: A blood bank needs 5 people to help with a blood drive. 10 people have volunteered. Find how many…

A: Given : A blood bank needs 5 people to help with a blood drive.  10 people have volunteered.   To…

Q: Canvas generates a random exam by picking 7 questions from a bank of 10 questions. How many…

A: Here 10 Questions  We have to Pick 7 of them for exam

Q: Joe had 6 favorite baseball teams , and he puts their flags in his flagpole in random order. How…

A:

Q: Three members of a committee will be randomly selected from five people. How many different…

A: We have to find number of different combinations possible.

Q: Canvas generates a random exam by picking 6 questions from a bank of 9 questions. How many different…

A: Given : Question bank contain 9 questions .  n = 9 Picking 6 question from question bank for…

Q: Pablo randomly picks three marbles from a bag of eight marbles (four red ones, two green ones, and…

A: Given a bag contains 4 red, 2 yellow, 2 green marbles. 3 marbles are drawn at random. Need to find…

Q: A machine puts out 16 imprefect articles in a sample of 500. After the machine is repaired, puts out…

A: If two samples are drawn from different populations, we may be interested in finding out whether the…

Q: In a survey of 3367 adults aged 57 through 85​ years, it was found that 84.2​% of them used at least…

A: A survey of 3,367 adults aged 57 through 85​ years. There is 84.2​% of them used at least one…

Q: A factory that makes gaming systems selects 100 random systems to check for defects. They find that…

A: A factory that makes gaming system select 100 random systems. The 3 gaming system are defective. The…