Answered: 2. What is the standard deviation of…

2. What is the standard deviation of the number of bags of chips that Beth will buy? Answer choices: 1.021 2.041 4.167 8.334

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Jeremy sells a magazine which is produced in order to raise money for homeless people. The…

A: Given:n = number of trials =20 (since Jeremy approaches 20 people)p = probability of success on each…

Q: Suppose the distribution of oil prices is $50, $65, $105. Find the probability that the price will…

A: From given data we have : the distribution of oil prices is $50, $65, $105.

Q: find the probability of left of z = 2.3456

A: z-score: The area under the Normal distribution curve represents the probability and the total area…

Q: Sam is going to throw a dart at a dartboard in a local establishment. Sam figures that the dart…

A: Sam figures that the dart will hit the bullseye or it won't.

Q: Camila sets up a passcode on her smart phone, which allows only five-digit codes. She has heard that…

A: Given : The passcode consists of 5 digits Out of 5 digits one digit appeared 2 times (because…

Q: 4 While gathering eggs one day, Lisa has 15 eggs when Liana has 20 eggs at the moment when they…

A: Given that Lisa has 15 eggs Liana has 20 eggs 10% are rotten eggs i.e., p = probability of rotten…

Q: The lacrosse team has a 55% chance of winning its upcoming games. Find the probability of them…

Q: A research firm claims that the distribution of the days of the week that people are most likely to…

A: The question is about categorical data analysis.Given :

Q: You order 13 pizzas, five that are cheese and eight that are mushroom. They arenot labelled on their…

A: There are total 13 boxes. We can pick any 5 boxes from those 13 boxes in 13C5 ways. If we want…

Q: The probability that you wear Vans to school is 0.65. If you wear your Vans, you have a 25% chance…

A: Let us denote: V=the event of wearing vans S=the event of wearing socks Given that P(V)= 0.65, So,…

Q: Catherine buys a bag of cookies that contains 7 chocolate chip cookies, 4 peanut butter cookies, 5…

A: Given that, Total number of cookies = 7+4+5+5 = 21 Number of chocolate chip cookies = 7 Number of…

Q: Emily has $10000 to invest in Apple stock. In the next month, the stock has a 30% chance of gaining…

A: Total amount for investment = $10000.The probability distribution for the provided data is:

Q: An insurance company sold 2,500 policies ($100,000 payout value) this year. The probability of death…

A: The number of deaths that would result in breaking even means that the expected mean is zero.…

Q: For numbers 23-25, refer to the problem. There are one thousand tickets that are sold for P50.00…

Q: Colleen buys a bag of cookies that contains 7 chocolate chip cookies, 6 peanut butter cookies, 7…

A: We can find the required probability by using the probability definition.

Q: A bet on “black" in Roulette has a probability of 18/38 of winning. If you win, you double your…

A: Given data: The given probability of winning is: P(W)=18/38. The expression for the…

Q: 6. The probability that a chocolate biscuit is double wrapped is 0.01, and a box contains 150…

A: Discrete Random Variable: A discreate random variable is a variable whose values can be obtained by…

Q: Scott is at a charity fundraiser and has a chance of receiving a gift. The odds in favor of…

A: Scott has a chance of receiving a gift.The odds in favor of receiving a gift are .

Q: Your favorite basketball player is a 90% free throw shooter. Find the probability (as a percent)…

Q: Ruth, the owner of a mail-order business, estimates that the probability that a household receiving…

Q: please, need solution for part D. For the group of 45 patrons, find the probability that the…

A: Sample size n=45

Q: What is the probability that she will not have to stop at the light all next week?

A: It is given that the probability that the light will be red is 65% = 0.65

Q: Jared buys a bag of cookies that contains 9 chocolate chip cookies, 5 peanut butter cookies, 8 sugar…

Q: A basketball player traditionally makes 80% of her free throws. Suppose she shoots 10 baskets and…

A: We have given that, X be the random variable from binomial distribution with probability (p)= 80% =…

Q: John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of…

A: Given Information: Number of people who walked by his store = 127 Ou of which 58 came in the store.…

Q: It is 10am. There is a 20% probability the friend will arrive within how many minutes?

A: The graph attached is the uniform probability density function for a friend who is x minutes late.…

Q: The lacrosse team has a 65% chance of winning its upcoming games. Find the probability of them…

Q: the probability that a tire is defective is 30%. The owner of a company buys 8 tires. Then the…

A: The probability that the tire is defective=0.30 Number of tires company buys (n)=8

Q: Tevin buys a bag of cookies that contains 4 chocolate chip cookies, 7 peanut butter cookies, 8 sugar…

A: The information provided in the question are as follows :- Number of chocolate cookies = 4 Number of…

Q: What is the probability that a randomly chosen contestant tried singing into the ground or charmed…

Q: The probability of drawing a peppermint candy out of a jar of 25 candies is 1/5.How many more…

A: Given : The probability of drawing a peppermint candy out of a jar of 25 candies is 1/5

Q: A landscaper is selecting two trees to plant. He has five to choose from. Three of the five are…

A: It can be solved using combination and probability formulas.

Q: Tom buys a bag of cookies that contains 9 chocolate chip cookies, 9 peanut butter cookies, 4 sugar…

A: Given,no.of chocolate chip cookies=9no.of peanut butter cookies=9no.of suger cookies=4no.of oatmeal…

Q: John creates comic strips for his town's newspaper. Last week, he created 8 comic strips, 6 of which…

Q: Suppose the candidate pool for two appointed positions includes 10 women and 5 men. All candidates…

A: Here N= 5men+10women =15 Selecting 2 men from 5 men is 5C2 ways Probability of selecting of 2men…

Question

For questions 1 - 2, use the described binomial probability distribution to calculate the mean (expected value) and the standard deviation. Beth is having a party. She is having a hard time choosing what kinds of chips to buy. She decides to walk down the aisle at the supermarket and roll a number cube at each bag of chips. If she rolls a 3, she will buy the bag of chips; if she rolls any other number, she will not buy the bag. There are 30 different kinds of chips in the store.

2. What is the standard deviation of the
number of bags of chips that Beth will buy?
Answer choices:
1.021
2.041
4.167
8.334

Video Video

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

AS2. NO5. DATA ANALYSIS
R5
Write your answer as a fraction reduced to lowest terms and as a percent rounded to the nearest hundredth of a percent. A bag contains 5 yellow balls, 5 orange balls, 6 white balls and 6 red balls. Five balls are drawn and NOT replaced each time. Determine the probability of drawing five red balls in a row. State whether the events are dependent or independent.
John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of whom came into the store. Of the 58, only 25 bought something in the store. For each of the following questions, answer using probability notation. Estimate the probability that a person who walks by the store will enter the store.
Q2
Kelly’s batting average is .30 (they hit 3 out of every 10 pitches). Let’s assume there are 120 pitches thrown in the first 8 games. !. There is a 70% chance they should hit at least how many pitches this season? Round down for this answer.
You pay $20 to enter a raffle. The first ticket drawn wins $1036, the second ticket drawn wins $477, the third through fifth win $186, and the sixth through tenth win $49. Suppose 2345 tickets were sold. What is the expected earning on your ticket?
Use the following table for the next two questions. The following data represent the number of male and female students enrolled in nursing at the University of Oklahoma Health Sciences Center for a recent semester. A student is selected at random. Find the probability of each event. Nursing majors 180 1010 1190 Males Females Totals 23. The student is a male or nursing majors? (a) 1.0222 (b) 0.6200 (c) 0.6101 (d) 0.5750 Non-nursing majors 1110 1700 2810 Totals 1290 2710 4000 (e) 0.0450 24. Given that the selected student is female, find the probability that the student is a nursing major? (e) 0.1200 (a) 0.0380 (b) 0.2525 (c) 0.3727 (d) 0.9772
Skyler buys a bag of cookies that contains 8 chocolate chip cookies, 5 peanut butter cookies, 8 sugar cookies and 9 oatmeal raisin cookies. What is the probability that Skyler randomly selects a sugar cookie from the bag, eats it, then randomly selects another sugar cookie? Express your answer as a reduced fraction.
The airline knows that about 7 percent of those who buy a plane ticket do not arrive for the flight. The plane has seats for 250 passengers, but the airline has sold 265 tickets. Approximate the probability that there will be enough seats for everyone arriving on the flight.