math course catalog

There are 156 candidates taking a course. The probability that a candidate passes the course is 0.73. Find the probability that 2 out of 3 candidates chosen at random pass the course. => 43% or 73% or 56% or 81%..

The average score of students in statistics examination is 90, with a variance of 4. The average score of students in algebra examination is 102, with a variance of 7. Which course is more variable in terms of scores? => algebra or both are equally variable or cannot be determined or stat..

Select the areas where probability is used. I. insurance industry II. end of the course examinations III. weather predictions IV. baseball game => all are correct or I and III only or III and IV only or I, III and IV only..

Find the z scores of three students who had a score of 93, 80, 84 in an examination for a pre-medicine course which has a mean of 84 and a standard deviation of 4. => 9, - 4, 0 or 23.25, 20, 21 or 2.25, - 1, 0 or - 2.25, 1, 0..

The percentage of points scored by Jack each year during his four year degree course is shown in the table. Which is the equivalent box-and-whisker plot for the data? Also find the average percentage of points scored by him during the course. Year Percentage of points 1st Year 7..

Students numbering 250 attending one or more courses in 3 subjects during a semester were enumerated as : Mathematics - 164 Computers - 93 Statistics - 147 Mathematics & Computers - 42 Mathematics & Statistics - 109 Statistics & Computers - 32 If a student is..

A food processing company must decide to accept or reject an entire shipment of potatoes based on the detailed examination of just a small number of potatoes selected at random from the shipment. The catalog states that the mean weight of a bag is 5 pounds with a standard deviation of 0.1..

In a golf course, the ball hit by Gary traveled a distance of 51 5 feet and the ball hit by Ed traveled a distance of 56 5 feet. Find the difference between the distances traveled by the balls. => 1 feet or 5 7 feet or 2 feet or 5 6 feet..

Over a period of time the grades given by the faculty in a particular course have averaged 12% A+, 20% A, 25% B, 23% C, and 20% D. A new faculty gives 30 A+, 45 A, 50 B, 40 C, and 35 D. Determine at α = 0.01, the chi-square test value and whether the new faculty is following the gra..

The table shows the percentage of scores obtained by Ethan each year during his four year degree course. Which of the following is the equivalent box-and-whisker plot of the data? Also find out the median of scores obtained. Year Percentage of scores 1st Year 70 2nd Year 82 3rd Year 76 4t..