What is the reliability of the system below if R1 = 0.9, R2 = 0.92, R3 = 0.82, R4 = 0.75, R5 = 0.85?
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What is the reliability of the system below if R1 = 0.9, R2 = 0.92, R3 = 0.82, R4 = 0.75, R5 = 0.85?
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- A professor holds office hours during final exam week and discovers much to his dismay that his sudden popularity affords him little time to engage in his favorite activity, watching cat videos. Fifteen students per hour arrive at his office and he patiently answers questions, averaging three minutes per student. A student joins the line at 9:45 am and the test is at 10:00 am the same morning. How much time does the student have after getting his question answered to get to the exam room? 9 minutes 12 minutes 6 minutes 3 minutesA bakeshop owner wants to know how to make his Baklava to the maximum appeal for his patrons (a sweet walnut and honey pastry). He thinks that the major factors that determine appeal are the amounts honey in the filling. During an eight-week period he makes three batches of Baklava using a low, medium and high mount of honey. He then counts how many of each type he has sold: low (n=102), medium (n=108), and high (n=84).A student in a statistics class is going to select 9 of her classmates to ask a survey question. Of her 18 classmates, there are 10 students who live off campus and 8 students who live on campus.(a) In how many ways can she select 9 classmates if the number of students who live on campus must be less than or equal to 2? X(b) In how many ways can she select 9 classmates if the number of students who live on campus must be greater than 2?
- One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a4-creditcourse, a B in each of three 3-credit courses, a C in a 2-credit course, and a D in a3 -credit course?One of the top companies trading on the stock exchange is intel.last week,by wensday intels stock had increased 3 and 1/5 points. By Friday it was down 3 and 2/25 point what was the overall change for the week a gain or a lossExample In a war between White and Red forces, there were more Red soldiers than Whites; there were more armed Whites than unarmed Reds; there were fewer armed Reds with ammunition than unarmed Whites without ammunition. Show that there were more armed Reds without ammunition than unarmed Whites with ammunition.
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- A psychologist would like to examine how the rate of presentation affects people’s ability to memorize a list of words. A list of 20 words is prepared. For one group of participants the list is presented at the rate of one word every 1/2 second. The next group gets one word every second. The third group has one word every 2 seconds, and the fourth group has one word every 3 seconds. After the list is presented, the psychologist asks each person to recall the entire list. The dependent variable is the number of errors in recall. The data from this experiment are as follows: 1/2 Second 1 Second 2 Seconds 3 Seconds 4 0 3 0 6 2 1 2 2 2 2 1 4 0 2…A tennis player keeps track of the number of successful first serves he makes. During the first 8 service points of a game, only 2 of his first serves are playable, so his first serve percentage is 25%.How many more consecutive successful first serves must he have to raise his first serve percentage to 60%?A university student is offered a choice of jobs for the summer months (16 weeks). Job A pays $400 a week with a weekly raise of $30. Job B pays $600/week. Which is the better choice, assuming she likes both jobs equally?
