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2. The following distribution represents the ratings (from 1 to 5 stars) for a product sold...
Suppose the following data represent the ratings (on a scale from 1 to 5) for a...
Suppose the following data represent the ratings (on a scale from 1 to 5) for a certain smart phone game, with 1 representing a poor rating. Complete parts (a) through (d) below. Stars 1 2 3 4 5 Frequency 2363 2679 4222 3688 10,166 (a) Construct a discrete probability distribution for the random variable x. Stars (x) P(x) 1 2 3 4 5 (Round to three decimal places as needed.) (b) Graph the discrete probability distribution. Choose the correct graph...
1. The following probability distribution represents the number of people living in a Household (X), and...
1. The following probability distribution represents the number of people living in a Household (X), and the probability of occurrence (P(X)). Compute the Expected Value (mean), the Variance and the Standard Deviation for this random variable. Show Your Calculations for the Mean. X 1 2 3 4 5 P(X) .33 .29 .27 .07 .04 2. Use the binomial formula to compute the probability of a student getting 8 correct answers on a 10...
Please use R to solve question 1. Question 1 5 pts Binomial distribution: X~Bi(n=15,p=0.3). Evaluate Pr(2<x<7)...
Please use R to solve question 1.
Question 1 5 pts Binomial distribution: X~Bi(n=15,p=0.3). Evaluate Pr(2<x<7) and round to three decimal places (see Lab 2). Question 2 5 pts Poisson distribution: X~Poisson(lambda=4.5). Evaluate Pr(X<11) and round to three decimal places. Question 3 5 pts Assume that X is normally distributed (X-N(0,1)). Find Pr(X=3).
1/ Consider the following table. Defects in batch Probability 2 0.18 3 0.29 4 0.18 5...
1/ Consider the following table. Defects in batch Probability 2 0.18 3 0.29 4 0.18 5 0.14 6 0.11 7 0.10 Find the standard deviation of this variable. 1.52 4.01 1.58 2.49 2/ The standard deviation of samples from supplier A is 0.0841, while the standard deviation of samples from supplier B is 0.0926. Which supplier would you be likely to choose based on these data and why? Supplier B, as their standard deviation is higher and, thus, easier to...
Q5. Consider the following table. Defects in batch Probability 0 0.09 1 0.24 2 0.41 3...
Q5. Consider the following table. Defects in batch Probability 0 0.09 1 0.24 2 0.41 3 0.12 4 0.10 5 0.04 Find the variance of this variable. Homework Help: 3VA. Calculating the mean, variance, and standard deviation of discrete variables (Links to an external site.) (4:35) 3DC. Mean, expected value, variance, and standard deviation of discrete variables (Links to an external site.) (DOCX) Group of answer choices 2.02 1.48 1.22 1.43 Q6 Consider the following table. Defects in batch Probability...
Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic...
Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeclogical research location. A random sample of 120 sites gave the readings shown in the table below Magnetic Susceptibility Readings, centimeter-gram-second x 10 (cmg Magnetic Susceptibility 0SK10 10 Sx<20...
in the north racial violence 1. (15pts) Consider the following data: 2 4 5 6 8...
in
the north racial violence
1. (15pts) Consider the following data: 2 4 5 6 8 P(x) 0.1 0.1 0.3 0.2 0.2 0.1 Step 1: The Expected Value E(X) is Round your answer to one decimal. Step 2: The Variance is Round your answer to at least two decimal places. Step 3: The Standard Deviation is Round your answer to at least two decimal places. Step 4: The value of POX>5) is Round your answer to one decimal. Step 5...
If a histogram is constructed from the following frequency distribution, how many classes will (1 point)...
If a histogram is constructed from the following frequency distribution, how many classes will (1 point) it have? Age Frequency 20 23 30 54 40 75 50 32 60 54 70 67 80 87 80 10 o 20 9. Identify a potentially misleading characteristic of a bar graph. (l poi) O one scale begins at some value other than zero O both scales begin at zero there are gaps between the bars there are no gaps between the bars 10....
Save Homework: Homework Chapter 5 Score: 0 of 1 pt 5.2.43 46 of 55 (46 complete)...
Save Homework: Homework Chapter 5 Score: 0 of 1 pt 5.2.43 46 of 55 (46 complete) HW Score: 72.74%, 40.01 of 55 pts is Question Help If we sample from a small finite population without replacement, the binomial distribution should not be used because the events are not independent. If sampling is done without replacement and the outcomes belong to one of two types, we can use the hypergeometric distribution. If a population has A objects of one type, while...
Q: 8-11 Question 8 [1.6 pts] Which one of the following statements about Reaction #4 is correct? Reaction #4 1. NaSCH2CH3 2. H3o* O The minor organic product(s) arise from nucleophilic attack at...
Q:
8-11
Question 8 [1.6 pts] Which one of the following statements about Reaction #4 is correct? Reaction #4 1. NaSCH2CH3 2. H3o* O The minor organic product(s) arise from nucleophilic attack at carbon L O The minor organic product(s) arise from nucleophilic attack at carbon M O None of the above Question 9 [1.6 pts] Which one of the following statements about Reaction #5 is correct? Reaction #5 H2SO4, heat molecular sieves D Product P is the minor organic...
Suppose the following data represent the ratings (on a scale from 1 to 5) for a certain smart phone game, with 1 representing a poor rating. Complete parts (a) through (d) below. Stars 1 2 3 4 5 Frequency 2363 2679 4222 3688 10,166 (a) Construct a discrete probability distribution for the random variable x. Stars (x) P(x) 1 2 3 4 5 (Round to three decimal places as needed.) (b) Graph the discrete probability distribution. Choose the correct graph...
Please use R to solve question 1.
Question 1 5 pts Binomial distribution: X~Bi(n=15,p=0.3). Evaluate Pr(2<x<7) and round to three decimal places (see Lab 2). Question 2 5 pts Poisson distribution: X~Poisson(lambda=4.5). Evaluate Pr(X<11) and round to three decimal places. Question 3 5 pts Assume that X is normally distributed (X-N(0,1)). Find Pr(X=3).
Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeclogical research location. A random sample of 120 sites gave the readings shown in the table below Magnetic Susceptibility Readings, centimeter-gram-second x 10 (cmg Magnetic Susceptibility 0SK10 10 Sx<20...
in
the north racial violence
1. (15pts) Consider the following data: 2 4 5 6 8 P(x) 0.1 0.1 0.3 0.2 0.2 0.1 Step 1: The Expected Value E(X) is Round your answer to one decimal. Step 2: The Variance is Round your answer to at least two decimal places. Step 3: The Standard Deviation is Round your answer to at least two decimal places. Step 4: The value of POX>5) is Round your answer to one decimal. Step 5...
If a histogram is constructed from the following frequency distribution, how many classes will (1 point) it have? Age Frequency 20 23 30 54 40 75 50 32 60 54 70 67 80 87 80 10 o 20 9. Identify a potentially misleading characteristic of a bar graph. (l poi) O one scale begins at some value other than zero O both scales begin at zero there are gaps between the bars there are no gaps between the bars 10....
Save Homework: Homework Chapter 5 Score: 0 of 1 pt 5.2.43 46 of 55 (46 complete) HW Score: 72.74%, 40.01 of 55 pts is Question Help If we sample from a small finite population without replacement, the binomial distribution should not be used because the events are not independent. If sampling is done without replacement and the outcomes belong to one of two types, we can use the hypergeometric distribution. If a population has A objects of one type, while...
Q:
8-11
Question 8 [1.6 pts] Which one of the following statements about Reaction #4 is correct? Reaction #4 1. NaSCH2CH3 2. H3o* O The minor organic product(s) arise from nucleophilic attack at carbon L O The minor organic product(s) arise from nucleophilic attack at carbon M O None of the above Question 9 [1.6 pts] Which one of the following statements about Reaction #5 is correct? Reaction #5 H2SO4, heat molecular sieves D Product P is the minor organic...
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