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4-9 The following probability distribution table has been obtained for the number of persons arriving at...
The number of calls arriving at a switchboard from noon to 1 p.m. during the business...
The number of calls arriving at a switchboard from noon to 1
p.m. during the business days Monday through Friday is monitored
for six weeks (i.e. 30 days). Let X be defined as the number of
calls during that one-hour period. The relative frequency of calls
was recorded and reported as:
Values 5 6 8 9 10 11 12 13 14 15
Rel. Freq. 0.067 0.067 0.100 0.133 0.200 0.133 0.133 0.067 0.033
0.067
Does the assumption of a Poisson...
Table of the most usual probability distribution functions of maintenance processes Create a table of the...
Table of the most usual probability distribution functions of maintenance processes Create a table of the most usual probability mass functions (pmf) or probability distribution functions (pdf) (for discrete or continuous random variables) and their features that are mostly applied in Maintenance and Reliability. The columns should contain the following information: pmf or pdf, range of the variable, the cumulative distribution function (CDF), parameters, range of parameters, mean value, standard deviation or variance. Draw the table landscape The table is...
The number of hits to a Web site follows a Poisson process. Hits occur at the...
The number of hits to a Web site follows a Poisson process. Hits occur at the rate of 1.8 per minute between 7:00 P.M. and 12:00 P.M. Given that x hits to the Web site between 9: 46 P.M. and 9:51 P.M 25. Compute the probability of x is fewer than seven. 26. Compute the probability of x is more than seven For the past 108 years, a certain state suffered 23 direct hits from major (category 3 to 5)...
1) The number of calls received at a certain information desk has a Poisson Distribution with...
1) The number of calls received at a certain information desk has a Poisson Distribution with an average of 6 calls per hour. (15 points) (a) Find the probability that there is at exactly one call during a 15 minute period. (You cannot use tables here - show all work) (b) Find the probability that at least 6 calls are received during a 30 minute period. (you may use tables here) ******************************** 2) Note that for the above problem, the...
a. Find the probability that the housing unit obtained has four rooms. The following table provides...
a. Find the probability that the housing unit obtained has four rooms. The following table provides a frequency distribution for the number of rooms in this country's housing units. The frequencies are in thousands. The probability is 0.193. (Round to three decimal places as needed.) b. Find the probability that the housing unit obtained has more than four rooms. Rooms No. of units 591 1,450 10,941 23,335 27,934 24,620 14,632 17,231 The probability is 0.699 . (Round to three decimal...
5 of 5 (1 complete) The table below shows the probability distribution for the number of...
5 of 5 (1 complete) The table below shows the probability distribution for the number of loaves, x of bread sold by a certain bakery x 12 23 59 P(x) 0.13 0.19 0 68 What is the expected number of loaves sold? O A 40 41 loaves OB. 5169 loaves OC. 31.33 loaves OD 48 87 loaves O E. None of the above Click to select your answer Type here to search BI 9 L 6
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...
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
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...
1. The following is the probability distribution of the number of customers buying bicycle accessories at...
1. The following is the probability distribution of the number of customers buying bicycle accessories at a particular shop in one day. 1 4 X P(X = x) 0 0.05 2 0.15 3 0.25 5 0.30 6 0.05 0.10 a (a) (b) (c) Compute the value of a. Find the probability that the shop did not sell any bicycle accessory in one day. Find the probability that at least three customers bought from the shop in one day. Find the...
The number of calls arriving at a switchboard from noon to 1
p.m. during the business days Monday through Friday is monitored
for six weeks (i.e. 30 days). Let X be defined as the number of
calls during that one-hour period. The relative frequency of calls
was recorded and reported as:
Values 5 6 8 9 10 11 12 13 14 15
Rel. Freq. 0.067 0.067 0.100 0.133 0.200 0.133 0.133 0.067 0.033
0.067
Does the assumption of a Poisson...
Table of the most usual probability distribution functions of maintenance processes Create a table of the most usual probability mass functions (pmf) or probability distribution functions (pdf) (for discrete or continuous random variables) and their features that are mostly applied in Maintenance and Reliability. The columns should contain the following information: pmf or pdf, range of the variable, the cumulative distribution function (CDF), parameters, range of parameters, mean value, standard deviation or variance. Draw the table landscape The table is...
The number of hits to a Web site follows a Poisson process. Hits occur at the rate of 1.8 per minute between 7:00 P.M. and 12:00 P.M. Given that x hits to the Web site between 9: 46 P.M. and 9:51 P.M 25. Compute the probability of x is fewer than seven. 26. Compute the probability of x is more than seven For the past 108 years, a certain state suffered 23 direct hits from major (category 3 to 5)...
a. Find the probability that the housing unit obtained has four rooms. The following table provides a frequency distribution for the number of rooms in this country's housing units. The frequencies are in thousands. The probability is 0.193. (Round to three decimal places as needed.) b. Find the probability that the housing unit obtained has more than four rooms. Rooms No. of units 591 1,450 10,941 23,335 27,934 24,620 14,632 17,231 The probability is 0.699 . (Round to three decimal...
5 of 5 (1 complete) The table below shows the probability distribution for the number of loaves, x of bread sold by a certain bakery x 12 23 59 P(x) 0.13 0.19 0 68 What is the expected number of loaves sold? O A 40 41 loaves OB. 5169 loaves OC. 31.33 loaves OD 48 87 loaves O E. None of the above Click to select your answer Type here to search BI 9 L 6
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
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...
1. The following is the probability distribution of the number of customers buying bicycle accessories at a particular shop in one day. 1 4 X P(X = x) 0 0.05 2 0.15 3 0.25 5 0.30 6 0.05 0.10 a (a) (b) (c) Compute the value of a. Find the probability that the shop did not sell any bicycle accessory in one day. Find the probability that at least three customers bought from the shop in one day. Find the...
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