A group of 20 university students contains 8 who are in their first year of study. A student is picked at random to represent the group at a fair. Find the probability that the student is a first year student.

Q: A class is composed of 20 boys and 25 girls. If a pupil is called to recite, what is the…

A: Given  A class is composed of 20 boys and 25 girls. If a pupil is called to recite, what is the…

Q: 13% of US residents are in their 30s. consider a group of 9 US residents selected at random. find…

A: It is given that the 13% of US residents are in their 30s i.e. the prob. that US residents are in…

Q: aster randomly selects four singers from the choir to be interviewed by a newspaper. Find the…

A: Given: Number of boys=9Number of girls=15Total number of singers=15+9=24 The given probability can…

Q: box contains 6 glazed doughnuts, 4 jelly doughnuts, and 5 chocolate doughnuts. If a person selects a…

A: Given Glazed doughnuts=6 Jelly doughnuta=4 Chocolate doughnuts=5

Q: A card is selected at random from an ordinary deck and replaced. Find the probability that the first…

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Q: Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced…

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Q: If one card is drawn from an ordinary deck of cards, find the probability of getting the following.…

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Q: Two cards are selected from a standard deck of 52 playing cards. The first is replaced before the…

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Q: 77% of all students at a college still need to take another math class. If 38 students are randomly…

A: Given data, n=38 p=77%=0.77 P(X=30)=?

Q: 88% of adults are high school graduates.  If a random sample of 10 adults is chosen, find the…

A: p=0.88sample size(n)=10Let "x" no. of adults are graduatesx~Binomial(n=10,p=0.88)P(X=x)=

Q: Fifty-three percent of all people in the US have at least some college education. If 20 people are…

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Q: A special deck of 20 cards contains 12 black cards and 8 green cards. One of the cards has a bent…

A: Given :  Total cards = 20 Black cards = 12 green cards = 8

Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: In a group of 103 students, 34 are diploma level and 22 are bachelor level. Find the probability…

A: Given that Group of 103 students 34 are diploma level and 22 are bachelor level Now, the number of…

Q: A class consists of 23 women and 31 men. If a student is randomly selected, What is the probability…

A: Given data, No of Men=31 No of women=23 Total no of students=23+31= 54 P(Student is man)=?

Q: A card is randomly selected from a standard deck of 52 playing cards. Find the probability that the…

A: The union probability for any two events A and B is defined as P(A ∪ B) = P(A)  + P(B) – P(A ∩ B).

Q: poker hand consisting of 9 cards is dealt from a standard deck of 52 cards. Find the probability…

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Q: Calculate the probability that at most 2 of the roses were Eden Roses.

A: let Number of eden roses = X

Q: At QT Sugar factory the amounts which go into bag of sugar are supposed to be normally distributed…

A: The mean of the distribution is 36 kg. The standard deviation of the distribution is 0.1 kg. The…

Q: A card is drawn from a full pack. Find the probability that it a King or a Queen

A: There are 52 cards in a standard Deck Number of king = 4 Number of Queen = 4

Q: A single card is selected from a standard deck of 52 cards. Find the probability that the card is a…

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Q: coin is tossed 6 times. Find the probability of getting at least 1 tail.

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Q: Suppose five cards are drawn from a deck of cards. Find the probability that all five cards are…

A: It is known that, Number of cards in a deck = 52 Number of heart cards = 13

Q: The names of 9 boys. and 9 girls are in a hat. What is the probability of first drawing a girl's…

A: The names of 9 boys. and 9 girls are in a hat. Total =18

Q: A bag contains 11 $50 bills and 75 $1 bills. 19 bills are drawn without replacement. Find the…

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Q: class consists of 50 women and 21 men. If a student is randomly selected, what is the probability…

A: According to the given information in this question, we need to find the following probability

Q: In a recent survey, 80% of the citizens in a community favored the building of a post office. If 15…

A: Solution

Q: If four cards are drawn, each card is replaced after it is drawn. Find the probability of getting at…

A: Number of Kings in the deck= 4 Here i am doing without replacement  If 4 cards are drawn without…

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 8 yellow ​balls, 6 black…

A: Given  20ball=8(yellow)+6(black)+4(red)

Q: A cooler contains 100 ice cream bars. There are 30 Vanilla​ bars, 20 Mint Chocolate Chip​ bars,10…

A: Given :- Number of ice cream bars a cooler contains = 100. Number of vanilla bars = 30 Number of…