There are 20 black cell phones and 30 white cell phones in a store. An employee takes 10 phones at random. Find the probability that a. there will be exactly 4 black cell phones among the chosen phones. b. there will be less than 3 black cell phones among the chosen phones.

Q: A typical engineering student would attend student groupwork in the Henry Sy discussion rooms…

A: (a) Let X be the number of times a randomly chosen engineering student attends a discussion room in…

Q: Aces have a point value of 1 or 11. A 52-card deck contains 16 cards with a point value of 10 (jacks…

A: Probability is always the number of possible desired outcomes over the total number of outcomes.…

Q: 1. A real estate agent's rate of success to make a sale among his customers is 20%. In a normal…

A:

Q: A single card is drawn from a standard 52-card deck. What is the probability that the card is either…

A: Given that, a single card is drawn from a standard 52-card deck.

Q: Instructions: Show & explain well your work. 1. Connor McDavid counted 16 goals out of 79 shots. A)…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: 5. Suppose we test a coin for fairness by flipping it 20 times. We reject the coin if the number of…

A: In statistics, hypothesis testing is a common method used to make decisions based on sample data.…

Q: 6.Find the probability a randomly selected card is a face card or a heart.

A:

Q: 21. A die is rolled. What is the probability of getting a. an even number or a 3? b. an odd number…

A: Solution

Q: Give the probability for each of the following totals in the rolling of two dices: 1, 2, 5, 6, 7, 10…

A:

Q: 1. Amir is taking a math test. There are 10 questions to do. test scores according to the number of…

A:

Q: 5. A multiple-choice quiz consists of 20 questions, each with 4 possible answers. Find the mean for…

A: A multiple choice quiz consists of 20 questions each with 4 possible answers. => P(correct…

Q: 88. Ten books, consisting of 5 mathematics books, 3 physics books, and 2 chemistry books, random.…

A:

Q: You're a DJ on a radio station. You access the BBC sounds library and select 97 funk tracks, 47…

A: Given: Funk Tracks = 97Hiphop Tracks = 47Jazz Tracks = 77

Q: 10. Suppose there are 10 women and 8 men who teach at a private school. Please simplify your answers…

A: a) There are two cases for the given situation. Case 1.  2 teachers are women and 1 is man. Case 2.…

Q: What is the Probability that a student is taking Art or band?

A: Let A denotes a student is taking Art, B denotes student is taking band . Number of students taking…

Q: 2) Choose the correct answer. Sherane rolls a standard, six-sided number cube. What is the…

A: We know that total faces on die is 6  So N= 6  And there are two multiple of 3 on the die i.e. 3 and…

Q: If you roll two six-faced dice together, you will get 36 possible outcomes. 1. List all possible…

A: Number of Possible outcome=62=36

Q: A high school club consists of 5 fre a. How many ways can a committee of 4 people be chosen that…

A: A) One student from each class: The number of ways of choosing such committee = 4C1.5C1.5C1.6C1=…

Q: A box contains 19 balls of each color (i.e., green, red, and blue). If 5 balls are to be drawn…

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Q: basket contains 7 yellow apples and 4 red apples. Margo picks two apples without looking. a. What…

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Q: 7. Suppose you roll two die (die is the plural of dices) a. List the sample space. b. Find the…

A: Two dice are rolled

Q: 34. It denotes the probability of committing a Type ll error. a A. D. B.

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Q: What is the probability of being in the circle but outside the square (shaded section.)

A: Let the radius of the circle = r So the area of the circle=total area= πr2

Q: A fair red, green, blue and yellow spinner is spun and a 6-sided die is rolled. Determine the…

A: Given : A fair red, green, blue and yellow spinner is spun Hence, the probability of spinning any…

Q: 4. Five dice (6 sided & fair) are tossed on a table. Calculate the probability of getting 4 ones.…

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Q: Ask 20 of your classmates about their favorite viand among the choices; ADOBO, SINIGANG and MENUDO.…

A:

Q: 3. Five cards are dealt from a shuffled deck. What is the probability that the dealt hand contains?…

A: (a) Obtain the probability that the dealt hand contains exactly one ace. The probability that the…

Q: Typically, half of the passengers on each flight are men. To illustrate this, we randomly select 100…

A: Solution-: Typically, half of the passengers on each flight are men. To illustrate this, we randomly…

Q: A club has a membership of 6 freshmen, 2 sophomores, 3 juniors and 4 seniors.  A committee of 4 is…

A: Obtain the probability that the committee consists of all freshmen. The probability that the…

Q: 5. A multiple-choice test contains 25 questions, each with four answers. Assume a student just…

A:

Q: 5. Calculate the probability of picking a card th

A: Here Total no of cards=52 Total no of heart =13 Totatl no of Spade =13

Q: 25. A pair of dice is rolled. What is the probability of getting a. a total of 6 or 8? b. a total of…

A: Given that,  a pair of dice is rolled. We need to find the probability of getting: a. a total of 6…