Homework Answers
Probability that family took exactly 3 vacations
=P(x=3) = 0.07
Answer is 0.07
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Question 21 The following table presents the probability distribution of the number of vacations X taken...
the following table presents the probability distribution of the number of vacations X taken last year...
the following table presents the probability distribution of
the number of vacations X taken last year for a randomly chosen
family.
Question 6 0.1 pts The following table presents the probability distribution of the number of vacations X taken last year for a randomly chosen family. Find P(1 or more). x 0 P(x) 0.15 1 0.56 2 0.15 3 4 0.1 0.04 0.29 0.56 0.71 0.85
Question 11 4 points The following table represents the probability distribution of the number of vacations...
Question 11 4 points The following table represents the probability distribution of the number of vacations x taken last year for a randomly chosen family. Compute the standard deviation [4 Marks] 0 1 2 3 4 5 P(x) 0.1 02 0.1 03 02 0.1 1.50 O no answer 2.6 2.24 Question 11 of 22 -> Moving to another question will save this response Close Window 8 $ % 0 0 V 7 8 5 6 3 T U
Morgano qu e response Question 19 032 Question 19 3 points Save The following table represents...
Morgano qu e response Question 19 032 Question 19 3 points Save The following table represents the probability distribution of the number of vacations x taken last year for a randomly chosen family. Compute the standard deviation. [3 Mark] 1.24 2.15 6 1.5275
#6 6) Compute the standard deviation of the random variable with the given discrete probability 6...
#6
6) Compute the standard deviation of the random variable with the given discrete probability 6 0 0.2 10 025 15 0.1 20 0.45 A) 13 B) 7.6 c) 11.25 D) 58.5 7 The following table presents the probability distribution of the number of vacations taken last year for a randomly chosen family. Find P(l or more) P015 0,56 015 01 004 B) 0.71 c0.29 D) 0.56 8) A survey asked 863 people how many times per weck they dine...
Probability The following table contains the probability distribution for X = the number of occupants in...
Probability The following table contains the probability distribution for X = the number of occupants in a randomly chosen car on University Ave on a Monday morning. X 1 2 3 4 5 P(X) 0.32 0.26 0.33 0.04 0.05 Calculate the mean or expected value for the number of occupants in a car on University Ave on Monday morning? Show your working or attach an image of your handwritten solution (write your name at the top of your paper)
1) Continuous random variables are obtained from data that can be measured rather than counted. A)...
1) Continuous random variables are obtained from data that can be measured rather than counted. A) True B) False 2) Discrete variables have values that can be measured. A) True B) False 3) Determine whether the random variable described is discrete or continuous. The number of minutes you must wait in line at the grocery store A) continuous B) discrete 4) Determine whether the random variable described is discrete or continuous. The total value of a set of coins A)...
Problem 2: The table provides the probability distribution for X the number of courses taught b...
Problem 2: The table provides the probability distribution for X the number of courses taught b at all degree-granting institutions of higher learning in the United States during the Fall 2017 semester # of courses taught by faculty 0.23 0.34 0.24 0.12 0.07 Given a randomly selected faculty member teaches at least 2 courses during the Fall semester, what is the probability they teach exactly 4 courses? a. b. What is the expected number of courses taught by a faculty...
The following table contains the probability distribution for the number of traffic accidents daily in a...
The following table contains the probability distribution for the number of traffic accidents daily in a smal town. Complete parts (a) and (b) to the right. a. Compute the mean number of accidents per day. Number of Accidents Px) (Type an integer or a decimal.) Daily (X) 0.22 0.25 0.21 0.11 0.09 0.07 0.05 b. Compute the standard deviation. (Type an integer or decimal rounded to three decimal places as needed.)
29. Determine if the following table represents a discrete probability distribution, where x represents the number...
29. Determine if the following table represents a discrete probability distribution, where x represents the number of pizza toppings that a customer may order. x 0 1 2 3 4 P(x) 0.15 0.10 0.25 0.25 0.25 a) No, because Ex+1 b) No, because & p(x) #1 c) Yes, because p(x) = 1 d) Yes, because x = 1 30. Use the table on #29 and find the probability that a randomly select customer will ordered at most 1 toppings a).25...
The following table presents the joint probability mass function pmf of variables X and Y 0...
The following table presents the joint probability mass function pmf of variables X and Y 0 2 0.14 0.06 0.21 2 0.09 0.35 0.15 (a) Compute the probability that P(X +Y 3 2) (b) Compute the expected value of the function (X, Y)3 (c) Compute the marginal probability distributions of X and )Y (d) Compute the variances of X and Y (e) Compute the covariance and correlation of X and Y. (f) Are X and Y statistically independent? Clearly prove...
the following table presents the probability distribution of
the number of vacations X taken last year for a randomly chosen
family.
Question 6 0.1 pts The following table presents the probability distribution of the number of vacations X taken last year for a randomly chosen family. Find P(1 or more). x 0 P(x) 0.15 1 0.56 2 0.15 3 4 0.1 0.04 0.29 0.56 0.71 0.85
Question 11 4 points The following table represents the probability distribution of the number of vacations x taken last year for a randomly chosen family. Compute the standard deviation [4 Marks] 0 1 2 3 4 5 P(x) 0.1 02 0.1 03 02 0.1 1.50 O no answer 2.6 2.24 Question 11 of 22 -> Moving to another question will save this response Close Window 8 $ % 0 0 V 7 8 5 6 3 T U
Morgano qu e response Question 19 032 Question 19 3 points Save The following table represents the probability distribution of the number of vacations x taken last year for a randomly chosen family. Compute the standard deviation. [3 Mark] 1.24 2.15 6 1.5275
#6
6) Compute the standard deviation of the random variable with the given discrete probability 6 0 0.2 10 025 15 0.1 20 0.45 A) 13 B) 7.6 c) 11.25 D) 58.5 7 The following table presents the probability distribution of the number of vacations taken last year for a randomly chosen family. Find P(l or more) P015 0,56 015 01 004 B) 0.71 c0.29 D) 0.56 8) A survey asked 863 people how many times per weck they dine...
1) Continuous random variables are obtained from data that can be measured rather than counted. A) True B) False 2) Discrete variables have values that can be measured. A) True B) False 3) Determine whether the random variable described is discrete or continuous. The number of minutes you must wait in line at the grocery store A) continuous B) discrete 4) Determine whether the random variable described is discrete or continuous. The total value of a set of coins A)...
Problem 2: The table provides the probability distribution for X the number of courses taught b at all degree-granting institutions of higher learning in the United States during the Fall 2017 semester # of courses taught by faculty 0.23 0.34 0.24 0.12 0.07 Given a randomly selected faculty member teaches at least 2 courses during the Fall semester, what is the probability they teach exactly 4 courses? a. b. What is the expected number of courses taught by a faculty...
The following table contains the probability distribution for the number of traffic accidents daily in a smal town. Complete parts (a) and (b) to the right. a. Compute the mean number of accidents per day. Number of Accidents Px) (Type an integer or a decimal.) Daily (X) 0.22 0.25 0.21 0.11 0.09 0.07 0.05 b. Compute the standard deviation. (Type an integer or decimal rounded to three decimal places as needed.)
29. Determine if the following table represents a discrete probability distribution, where x represents the number of pizza toppings that a customer may order. x 0 1 2 3 4 P(x) 0.15 0.10 0.25 0.25 0.25 a) No, because Ex+1 b) No, because & p(x) #1 c) Yes, because p(x) = 1 d) Yes, because x = 1 30. Use the table on #29 and find the probability that a randomly select customer will ordered at most 1 toppings a).25...
The following table presents the joint probability mass function pmf of variables X and Y 0 2 0.14 0.06 0.21 2 0.09 0.35 0.15 (a) Compute the probability that P(X +Y 3 2) (b) Compute the expected value of the function (X, Y)3 (c) Compute the marginal probability distributions of X and )Y (d) Compute the variances of X and Y (e) Compute the covariance and correlation of X and Y. (f) Are X and Y statistically independent? Clearly prove...
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