QUESTION 2
Research finds that of the students entering a degree
programme, 70% will successfully complete it. In 2018, 15
students commenced the course. Calculate the probability
that:
i. All 15 students will successfully complete the course.
ii. Only one student fails
iii. No more than two students fail.
iv. At least two students fail.
QUESTION 2 Research finds that of the students entering a degree programme, 70% will successfully complete...
QUESTION 1 I. The masses, to the nearest gram (g), of a random sample of 100 letters passing through Montego Bay Post Office No. 1 is in the table below. Mass (g) 40-59 60-69 70-79 80-89 90-99 100-149 150-159 Number of letters 10 25 46 6 5 4 4 Calculate to two decimal places: a) the mean b) the standard deviation QUESTION 2 Research finds that of the students entering a degree programme, 70% will successfully complete it. In...
Given that 40% of entering college students do not complete their Degree programs, What is the probability that out of 5 randomly selected students, more than half will get their degrees?. (Simplify and find the exact answer)
The registrar of Computronics Institute has compiled the following statistics on the progress of the school's students in the 2-year computer programming course leading to an associate degree: Of beginning students in a particular year, 90% successfully complete their first year of study and move on to the second year, whereas 10% drop out of the program; of second-year students in a particular year, 70% go on to graduate at the end of the year, whereas 30% drop out of...
IV. Continuous Distribution: Normal Normal 1. The average time to complete a final exam in a given course is normally distributed. With average of 80 min, and standard deviation of 8 minutes. For a certain student taken at random: to. What is the probability of finishing the exam in an hour or less? b. What is the probability of finishing the exam between 60 min and 70 min? Exponential 2. The time to fail in hours of a laser beam...
B4. (a) Out of the students in a class, 80% love chocolate (event C), 30% love Marmite (event M) and 20% percent like both i) Write down the probabilities of all simple and complementary events as well as of the event 2 marks CNM Compute the probabilities that a randomly selected student ii) is a chocolate lover who does not like Marmite; iii) is a Marmite or a chocolate lover, but not both; iv) dislikes both Marmite and chocolate 2...
An investment center has been running investment courses for many years. According to records, 28% of students who have attended the investment course can earn a profit of more than 2% within one week by the end of the course. Currently, there are 20 students attending an investment course. The trading technique of each student is independent. (a) Most likely, how many students in this course can earn a profit of more than 2% within one week by the end...
A professor marks an exam and, after compilation of the grades,she finds that her 25 students obtained a class mean of 70%. On the other hand, the median is 74% and the mode is 78%. a) At least how many students scored 74% or more? Explain briefly. b) What could explain that the mean is less than the median? c)Is this grade distribution symmetric, right skewed, or left skewed? Explain briefly. d)One student asks the professor to review his grade....
A marketing research firm would like to survey undergraduate and graduate college students about whether or not they take out student loans for their education. There are different cost implications for the region of the country where the college is located and the type of degree. The survey cost table is provided below: Student type Region undergraduate graduate East $10 $15 Central $12 $18 West $15 $21 The requirements for the survey are as follows: The survey must have at...
Complete the following activity by entering at least 2 advantages (positive effects) and 2 disadvantages (negative effects) of using computers for research. If someone else before you states what you were going to say, then state the person’s name, and explain the other person’s point in more detail, why you agree with them, and provide an example to further explain the point. Group Exercise: What Are Positive & Negative Effects of IT? Positive Effects of IT on Society Negative Effects...
The boxplots below show the distribution of test scores for two classes. Class A Class B 0 80 90 100 10 20 30 40 50 60 70 Test scores Which of the following statements is a valid conclusion that can be drawn from the boxplots? Choose all that apply. At least 25% of each class earned a B (80 or higher on the exam). Class B has more students than class A. Class A and B have approximately the same...