6281 Math 1272 Exam 4 is to the left of the mean is alwas 8. For a normal distri
ID: 3371263 • Letter: 6
Question
6281 Math 1272 Exam 4 is to the left of the mean is alwas 8. For a normal distribution, the s value for an x value that a. equal to zero b, negative o, less than d. positive 9. For a normal distribution, the a value for the mean is always a. equal to zero b. negative o. equal to 1 d positive 10. Which of the following is an example of a binomial experiment? a. Rolling a die 10 times and observing for a number b. Selecting five persons and observing whether they are in favor of an issue, against it, or have no e. Tossing a coin 20 times and observing for a head or a tail d. Drawing three marbles from a box that contains red, blue, and yellow marbles opinion 10( Part 2 Directions: Show all work on the examination paper. When using the calculator, you MUST write down the function button(s) you used to determine your answers. Do not just write a number as an answer-you MUST write down what the number represents. 11. A teacher selects two students at random from a group of 18 for being members of a committee. How many total combinations are possible? 12. An archeology club has 38 members. How many different ways can the club select a president, vice president, treasurer and secretary? 12. 13. a student must choose from 7 classes to take at 8:00 am, 4 classes to take at 9:00 am and classes to take at 10:00 am. How many ways can the student arrange the schedule? 13. than 1Explanation / Answer
8. 'z' value for x to the left of the mean is always negative.
9. 'z' value for the mean is always equal to zero
10.Tossing a coin 20 times and observing the outcome since the outcome is binary
11. Total number of combinations= 18C2 = 18*17/1*2 = 9*17 = 153
12. Total number of selctions ways = 38*37*36*35 = 1771560
13. Total number of arrangements = 7*4*3 = 84
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.