1. What is the z-score for an observation of 10.9 when the mean is 11.8 and...
1. What is the z-score for an observation of 10.9 when the mean is 11.8 and the standard deviation is 1.3?
2. Suppose that I flip a fair coin 34 times. What is the probability that it will land on heads exactly 19 times?
Make sure your answer is between 0 and 1.
3. Suppose you are taking a multiple choice exam with 75 questions, each with 4 possible answers. If you were to guess at random for each question, how many questions would you expect to get right?
Your answer does not need to be an integer.
Thank you!
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1. What is the z-score for an observation of 10.9 when the mean
is 11.8 and...
Suppose that I flip a fair coin 34 times. What is the probability that it will...
Suppose that I flip a fair coin 34 times. What is the probability that it will land on heads exactly 19 times? Make sure your answer is between 0 and 1.
Suppose you are taking a multiple choice exam with 75 questions, each with 4 possible answers....
Suppose you are taking a multiple choice exam with 75 questions, each with 4 possible answers. If you were to guess at random for each question, how many questions would you expect to get right? Your answer does not need to be an integer.
Question 2 Suppose you have a fair coin (a coin is considered fair if there is...
Question 2 Suppose you have a fair coin (a coin is considered fair if there is an equal probability of being heads or tails after a flip). In other words, each coin flip i follows an independent Bernoulli distribution X Ber(1/2). Define the random variable X, as: i if coin flip i results in heads 10 if coin flip i results in tails a. Suppose you flip the coin n = 10 times. Define the number of heads you observe...
Suppose you are taking a multiple choice exam with 65 questions, each with 4 possible answers....
Suppose you are taking a multiple choice exam with 65 questions, each with 4 possible answers. If you were to guess at random for each question, how many questions would you expect to get right? Your answer does not need to be an integer.
20.21.24.25 are dice 16. Suppose you roll two fair dice. Give an example of two independent...
20.21.24.25
are dice 16. Suppose you roll two fair dice. Give an example of two independent events. Given an example of two disjoint events ' (AMB) 74 73. 17. Under what circumstances could two events be both disjoint and independent? 18. Suppose that there are 10 sodas in a cooler: 7 regular and 3 diet. What is the probability that 2 diet sodas are selected at random? What is the probability that 2 diet sodas are selected given at least...
PLEASE ANSWER QUESTION # 5 a and b !!!!!!!!!! 4) Chapter 4-5: a) You flip a balanced coin 3 times. What is the probabil...
PLEASE ANSWER QUESTION # 5 a and b !!!!!!!!!!
4) Chapter 4-5: a) You flip a balanced coin 3 times. What is the probability that you get 3 heads? b) You flip a balanced coin 3 more times. What is the probability that you get 3 tails? c) What is the probability that you get 3 heads followed by 3 tails? d) What is the probability that you get exactly 1 head in the 6 flips? 5) Chapter 6: a)...
Question 13 0.2 pts Suppose you are taking a multiple choice exam with 55 questions, each...
Question 13 0.2 pts Suppose you are taking a multiple choice exam with 55 questions, each with 4 possible answers. If you were to guess at random for each question, how many questions would you expect to get right? Your answer does not need to be an integer. Question 14 0.2 pts On average 1.8 babies are born each day at a local hospital. Assuming the Poisson distribution, what is the probability that no babies are born today?
Please answer all of the questions completely and show your work. Disregard the work already written....
Please answer all of the questions completely and show your
work. Disregard the work already written. Thank you!
Topic 5: Tree Diagrams Tree Diagrams A tree diagram is great for solving probability problems that multiple stages. The probabilities of corresponding branches. Then multipl the probability of that particular sequence of events occurring involve successive events or each outcome for each stage are written on the ying the probabilities along a sequence of branches yields 1. Betsy flips a coin three...
Write only the numerical answer for the questions below. 6 points for each question. 1. Suppose...
Write only the numerical answer for the questions below. 6 points for each question. 1. Suppose that the probability of a day being rainy in Istanbul is 0.4 independent of the other days. What is the probability that more than 2 days are rainy in a week. 2. Find P(X < x + 4) where X is the mean of a sample with size 4. 3. Suppose, in a statistics class, there are 10 female students with a mean GPA...
A student wanted to compare two types of commuting options. One type is carpooling and the...
A student wanted to compare two types of commuting options. One type is carpooling and the other is taking a commuter train. It is a common belief that carpooling saves more time. This belief is tested by having 10 students commute to school by each mode of transportation and recording the time of arrival at school each morning. A coin flip was used to determine which type of transportation that a student would use first. Results indicated that there was...
Question 2 Suppose you have a fair coin (a coin is considered fair if there is an equal probability of being heads or tails after a flip). In other words, each coin flip i follows an independent Bernoulli distribution X Ber(1/2). Define the random variable X, as: i if coin flip i results in heads 10 if coin flip i results in tails a. Suppose you flip the coin n = 10 times. Define the number of heads you observe...
20.21.24.25
are dice 16. Suppose you roll two fair dice. Give an example of two independent events. Given an example of two disjoint events ' (AMB) 74 73. 17. Under what circumstances could two events be both disjoint and independent? 18. Suppose that there are 10 sodas in a cooler: 7 regular and 3 diet. What is the probability that 2 diet sodas are selected at random? What is the probability that 2 diet sodas are selected given at least...
PLEASE ANSWER QUESTION # 5 a and b !!!!!!!!!!
4) Chapter 4-5: a) You flip a balanced coin 3 times. What is the probability that you get 3 heads? b) You flip a balanced coin 3 more times. What is the probability that you get 3 tails? c) What is the probability that you get 3 heads followed by 3 tails? d) What is the probability that you get exactly 1 head in the 6 flips? 5) Chapter 6: a)...
Question 13 0.2 pts Suppose you are taking a multiple choice exam with 55 questions, each with 4 possible answers. If you were to guess at random for each question, how many questions would you expect to get right? Your answer does not need to be an integer. Question 14 0.2 pts On average 1.8 babies are born each day at a local hospital. Assuming the Poisson distribution, what is the probability that no babies are born today?
Please answer all of the questions completely and show your
work. Disregard the work already written. Thank you!
Topic 5: Tree Diagrams Tree Diagrams A tree diagram is great for solving probability problems that multiple stages. The probabilities of corresponding branches. Then multipl the probability of that particular sequence of events occurring involve successive events or each outcome for each stage are written on the ying the probabilities along a sequence of branches yields 1. Betsy flips a coin three...
Write only the numerical answer for the questions below. 6 points for each question. 1. Suppose that the probability of a day being rainy in Istanbul is 0.4 independent of the other days. What is the probability that more than 2 days are rainy in a week. 2. Find P(X < x + 4) where X is the mean of a sample with size 4. 3. Suppose, in a statistics class, there are 10 female students with a mean GPA...
A student wanted to compare two types of commuting options. One type is carpooling and the other is taking a commuter train. It is a common belief that carpooling saves more time. This belief is tested by having 10 students commute to school by each mode of transportation and recording the time of arrival at school each morning. A coin flip was used to determine which type of transportation that a student would use first. Results indicated that there was...
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