You own a bakery and are making scones for a party.Unfortunately, the order is too largeand youneed tohire a second worker to help. The worker is not verygood at making scones and thus eaen score only hasan 80% chance of being accepted. Assume that earnScope is made independently.expecteda) If the worker bakes 90 scones, what is the "number ofUnacceptable scones ?b) If the worker bakes 90 scones, what is the probabilityyou get at least 85 scones that are acceptable ?thatpected member of cuprates the cutterc) What is the expected number of scores the workerneeds to bake in order to have 90 acceptableScores?

The worker is not very good at making scones and thus each scone only has an 80% chance of being…

Answered: You own a bakery and are making scores…

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

Similar questions

You're a sociologist studying whether grocery prices are different in the inner cities than they are in the suburbs. To investigate this, you pick a random set of items (a basket of goods), and then send shoppers to buy these items at an inner city (IC) grocery, and also at a suburban (SU) grocery. You pick 27 different baskets of goods, so your secret shoppers buy 27 baskets, once at the inner city store, and once at a suburban store. The data is given in the dataset named "ICvSU_2799.xls", which you can find in data folder under Course Documents. Prices could be higher in the inner city because of discrimination, or they could be higher in the suburbs because of the greater disposable income. Use Excel to test the research hypothesis that inner city prices are different than the suburb's prices. The null hypothesis is that inner city prices are equal to suburban prices. You test at the alpha = 0.01 significance level. What do you conclude? Are prices the same? Who has higher…
Answer number 1
19A) Solve the following using Statistic materials: A) A student takes a 10-question multiple-choice exam, but did not study and randomly guesses each answer. Each question has three possible choices. Find the probability that the student guesses 50% correct. B) It is known that 15% of the seniors in a large high school enter military service upon graduation. If a group of 20 seniors are randomly selected, what is the probability of observing at least two who will be entering military service? C) It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 11 California residents. We are interested in the number who have adequate earthquake supplies. Is it more likely that none or that all of the residents surveyed will have adequate earthquake supplies? Explain why using mathematical justification.
The table below is a two-way contingency table which describes the method of suicide employed by each gender in the US. A suicide case will be randomly selected. What is the probability a case will involve a hanging? ["", "", "", "", ""] What is the chance the case will involve a female and firearms? ["", "", "", "", ""] What is the chance the case will involve a male or poison? ["", "", "", "", ""] Suppose you learn the selected case involved firearms. What is the chance the case involves a female knowing that it involved firearms?
a) Ellisa is going to play one badminton match and one tennis match. The badminton match has been scheduled one week earlier than the tennis match. Based on the prediction by her coach, the chance that she will win the badminton match is 0.9. Other than that, the coach believed that if Ellisa wins the badminton match, the chance that she will win the tennis match is 0.65. But if she loses the badminton match, she has a 0.7 chance of losing the tennis match too. i) Draw a tree diagram and the probabilities for each event involved in the above scenario. ii) Find the probability that Ellisa will win the tennis match. iii) Are the events independent? Proof it numerically. b) According to a survey conducted by Tourism Malaysia, 70% of Malaysian companies give employees 25 to 30 days of annual leave. Find the probability that among 6 companies surveyed at random, more than half of the companies give employees 25 to 30 days of annual leave. c) The time taken for servicing a car has an average…
. Three airlines serve a Srinagar. Airline ‘Amira’ has 50% of all the scheduled flights,airline ‘Biyas’ has 30%, and airline ‘chinar’ has the remaining 20%. Their on-time ratesare 80%, 65%, and 40%, respectively. Part 1) Draw the Probability tree diagram. (Note: You may use any software for this, likeMS paint, MS office, etc.) Part 2) A plane has just left on time. What is the probability that it was airline ‘Amira’?
You're a sociologist studying whether grocery prices are different in the inner cities than they are in the suburbs. To investigate this, you pick a random set of items (a basket of goods), and then send shoppers to buy these items at an inner city (IC) grocery, and also at a suburban (SU) grocery. You pick 30 different baskets of goods, so your secret shoppers buy 30 baskets, once at the inner city store, and once at a suburban store.The data is given in the dataset named "ICvSU_3095.xls", which you can find in data folder under Course Documents. Prices could be higher in the inner city because of discrimination, or they could be higher in the suburbs because of the greater disposable income. Use Excel to test the research hypothesis that inner city prices are different than the suburb's prices. The null hypothesis is that inner city prices are equal to suburban prices. You test at the alpha = 0.05 significance level. What do you conclude? Are prices the same? Who has higher prices?…
In Stresstown, 1000 citizens total. Half of the citizens (500) became sick from contaminated water, while 468 of the citizens were exposed to the bacteria, 63 did not get sick. Which of the following statements is true? 1) You cannot determine from the information given. O 2) The relative risk of getting exposed to contaminated water is 12.6 times more likely than those who lived elsewhere. 3) 15 of the cases can be attributed to contaminated water. 4) Only half of the citizens are at risk.
B. Perimeter Shot - A perimeter shot, also known as a mid-range shot, is a jump shot or general field goal attempt that an offensive player can take inside of the three-point line and is worth 2 points. To practice this, Piel has to choose four different shooting spots among the five different spots in where he is comfortable of shooting. In previous games, his shot selection is 5% from the right baseline (Spot 1), 15% from the right elbow (Spot 2), 20% from the top of the key (Spot 3), 25% from the left elbow (Spot 4) and 35% from the left baseline (Spot 5). In this drill, a shooting spot can be selected once, multiple times, or not at all. This drill illustrates a random experiment with distribution. To help Piel decide, below is the partial table for the means and standard deviations of the random variable, Y, or the number of times he shoot the ball in a shooting spot. Shooting Spot E[Y] SD[Y] Spot 1 0.2 0.4359 Spot 2 0.6 0.7141 Spot 3 0.8 0.8000 Spot 4 the mean of 1.4 by will…
A roulette wheel has 38 numbers, with 18 odd numbers (black) and 18 even numbers(red), as well as 0 and 00 (which are green). You bet 5 dollars that the outcome is anodd number. If you win you get 10 dollars; otherwise you lose your 5 dollars. Note:assume the 0 and 00 numbers are considered even numbers What is your expected winnings? Which of these options is best: bet on an odd number or don’t bet? Why?
. A swimmer, Sarah, hopes to compete in an upcoming meet. There are 8 team members eligible for the breaststroke event at the meet, but only 1 team member will be randomly selected to compete in that event. There are 4 team members eligible for the butterfly event at the meet, but only 1 team member will be randomly selected to compete in that event. Sarah is eligible to compete in both events. What is her chance of being selected for at least one of the two events? Select one: a. 1 in 4 b. 1 in 8 c. 3 in 8 d. 3 in 12
Alice has a garden containing 9 carnations, 12 roses, and 6 dahlias. Alice randomly selects 6 of these flowers to give to her math teacher. Let X = the number of the selected flowers which are roses.a. a) How many possible ways are there to select the 6 out of 27 flowers (order does not matter) without replacement? b. What is the probability that X = 6 c. What is the probability that X=3? d. What is the probability that X > 3? e. What is the expected value of X? f. What is the standard deviation of X? g. What is the probability that X is within 1.0 standard deviation of its expected value? h. What is the probability that X = 2.6667? Add any comments below.

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS