Solve the following: 1.) In a mathematics seminar, 15 students are in grade 7, 10 are in grade 8, 20 are in grade 9 ans 30 are in grade 10. If a student will be chosen at random,what is the probability of selecting a grade 10 student?

Q: a) A box contains 3 white cards and 2 black cards. Next to the box is a hat which contains 2 white…

A: According to Bartleby guidelines, only one question can be solved at one time. Please post other…

Q: 20) In one town, 45% of all voters are Democrats. If four voters are randomly selected for a survey,…

A: This is the case of binomial because there are only two possible outcomes, i.e., Democrats or not…

Q: 6.) You pick 3 cards from a deck without replacing a card before picking the next card. What is the…

A: no.of heart cards=13total no.of cards=52

Q: 4) The table below shows data on a sample of 900 high school students from the Bay Area. Students…

A: Solution: e) Given information  Total high school students = 900 The total students of neither…

Q: what is the probability the he or she will answer correctly (a) at least 6 problems?

A:

Q: If three cards are randomly selected in a deck of 52 cards, what is the probability of selecting the…

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Q: 4. Among the contestants in a competition are 42 women and 28 men. If 4 winners are randomly…

A:

Q: 6) In a company there are 10 executives: 6 women and 4 men. 4 are selected to attend a management…

A: 6- women 4-men 10- total members .4 are selected to attend management seminar. p(select 3 men and 1…

Q: .A coin is flipped 5 times, find the probability of getting at most 1 head.

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Q: coin is flipped 10 times, what is the probability of at least one hea

A: If we toss a fair coin, there are two possible outcomes for each trial that is "Head' and "Tail".For…

Q: committee of 3 is to be chosen from 14, 10 females and 4 males, at random. Josue is one of the…

A: According to the combination rule, if r distinct items are to be chosen from n items without…

Q: From a group of 9 boys and 12 girls, a committee of 4 students is chosen at random. a. What is the…

A: Given: 9 boys 12 girls Total = 12+9 =21 students

Q: With 5 professors and 15 students to choose from, what is the probability of choosing 12 people for…

A: The probability of choosing a committee of 2 professors and 10 students is approximately…

Q: There are 6 red balls and 8 blue balls in a box. In this experiment, the balls will not be replaced,…

A: Given, 6 red balls and 8 blue balls in a box To find  The probability of 3 of them will be a red…

Q: 8. Ali records the number of cars that approach an intersection. He finds that an average of 2 cars…

A: The objective of this question is to find the probability that 3 or more cars will approach the…

Q: One card is drawn from a deck. Find the probability that it is red or an 8?

A: Let, r is the event that represents a red card is drawn. e is the event that represents an 8 card is…

Q: 9. A town council consists of 8 Democrats, 7 Republicans, and 5 Independents. A committee of 3 is…

A:

Q: A game that draws 5 digits from 1-49 from the same machine. In other words, numbers are drawn and…

A:

Q: 3. A 3-digit number is form from the numbers 1, 2, 3, 4, 5 without replacement. Find the probability…

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Q: There are 22 students, from which 6 people will be picked to be on a panel. If Abe and James are 2…

A: We have to find given probability

Q: Nine stranger are put in a room. There is 50% probability that any two random people in the room…

A:

Q: 4. Bowl A contains 60 black chips and 40 white chips. Fifty of these 100 chips are selected at…

A: Given,no.of black chips=60no.of white chips=40total no.of chips=100

Q: A bag contains 4 white, 7 black, and 6 green balls. What is the probability that a ball drawn at…

A: A bag contains 4 white, 7 black, and 6 green balls.  There are 4+7+6 = 17 balls. Among the balls…

Q: At a grocery store there are 45 employees there are 23 employees who are married 13 employees who…

A: There are totally 45 employees in a grocery store in which 23 employees who are married 13 employees…

Q: 10. Assume that a lottery was conducted in a small office and only 10 tickets were sold; you and a…

A: Total Tickets available = 10 2 winners are selected First we will select the first prize , then…

Q: One drawer in a dresser contains 8 blue socks and 6 white socks. A second drawer contains 4 blue…

A: In first drawer:no.of blue socks=8no.of white socks=6Total no.of socks=14In 2nd drawer:no.of blue…

Q: Suppose a dog has a litter of 13 puppies. Of those 13 puppies, 5 are brown, 4 are white, and the…

A: Ans#-Givan, A dog has a litter of 13 puppies. Of those 13 puppies, 5 are brown, 4 are white, and…

Q: ) A bridge hand is made up of 13 cards from a deck of 52. Find the probability of a hand with 6 of…

A: select 13 cards from 52 card deck.  P(six cards of one suit,4 of another suit and 3 of another suit)…

Q: 1. Identify and explain the three defining characteristics of the normal probability distribution 2.…

A: We have  Normal probability distribution

Q: A bag of M&M's has 5 red, 4 green, 7 blue, and 8 yellow M&M's. What is the probability of randomly…

A:

Q: A bag contains 8 red marbles, 5 green marbles, 4 white marbles. If one marble is drawn from the bag…

A: Bag contains no of red marbles= 8 number of green marbles = 5 number of white marbles = 4 Total…

Q: student randomly grabs 2 socks from her drawer, which contains 11 white socks and 8 black socks.…

A: given data, A student randomly grabs 2 socks from her drawer11- white socks08-black socks19- total…

Q: In how many ways can they be placed into the five positions of the high committee if i. there is no…

A: HERE GIVEN JESS AND HER 4 CLASSMATES HAVE BEEN SELECTED TO FORM COMMITEE

Q: If a classroom of 32 students has 7 males (5 of who are single and 2 who are married) and 25 females…

A: Given,no.of single males=5no.of married males=2no.of single females=7no.of married females=18total…

Q: If 10 people choose, at random, a letter from the English alphabet of 26 letters, what is the…

A: We find the probability that each of the 10 people chooses a different letter from the English…

Q: A three-digit number is formed with the digits 1, 2, 3, 4, 5 at random. What is probability that…

A:

Q: MULTIPLE CHOICE 1. A statistical technique that enables you to obtain a linear equation that relates…

A: A statistical technique that enables you to obtain a linear equation that relates dependent variable…

Q: A committee of 5 persons is to be selected from a group of 5 men and 10 women. Find

A: Given information: There are 5 men and 10 women. Total people is 5+10=15 5 people selected from 15…

Q: 3. A box has 6 black, 4 red, 2 white and 3 blue shirts. Two shirts are picked at random, find the…

A: The following information has been provided: The number of black shirts =6 The number of red…

Q: In a group of 30 people, 10 have blue eyes. If a committee of 5 people is randomly selected, what is…

A: There is total 30 people, among which 10 have blue eyes.

Q: The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the…

A: To decide whether to reject the null hypothesis we compare p-value and level of significance.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.