Mathematics, 16.06.2020 18:57 imstressed
The score of a student on a certain exam is represented by a number between 0 and 1. Suppose that the student passes the exam if this number is at least 0.55. Suppose we model this experiment by a continuous random variable S, the score, whose probability density function is given by:.
A) What is the probability that the student fails the exam?
B) What is the score that he will obtain with a 50% chance. in other words, what is the 50th percentile of the score distribution?
Answers: 2
Mathematics, 21.06.2019 20:30
Daryl factors the polynomial p(x)=x3+x2β26x+24 to rewrite it as p(x)=(x+6)(xβ4)(xβ1). which equations must be true? there may be more than one correct answer. select all correct answers. p(1)=0 p(β4)=0 p(β1)=0 p(6)=0 p(4)=0 p(β6)=0
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Mathematics, 21.06.2019 21:40
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Answers: 3
Mathematics, 21.06.2019 23:00
The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree
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The score of a student on a certain exam is represented by a number between 0 and 1. Suppose that th...
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