math statistics and probability grade 11
a. P[1) = 0.08, P(2) = 0.12, P(3) = 1.03 b. P(1) = 10/33. P(2) = 1/3, P(3) = 12/33 Write D if the statement is discrete random variable and C if continuous random variable True or False. Write True if the statement is correct and 1. the speed of a car False if the statement is incorrect. 2. the number of female athletes 3. the time needed to finish the test 13, The normal curve is a bell-shaped probability 4. the amount of sugar in a cup of coffee 5. the number of people who are playing distribution Lotto each day 14, The area under the normal curve is 10016 Choose the letter that corresponds to the 15. The normal curve depends on two factors the correct answer, Write your answer on the space provided. mean and standard deviation 6. Which of the following is a CONTINUOUS 16. A normal distribution is a continuous random variable probability distribution a, The average amount of electricity consumed 17. The standard deviation determines the center b, The number of patients in a hospital of the graph c. The number of correct answer in a test d. The number of people in each country 18. The probability of x to be any single value is 7. If three coins are tossed, which is not a equal to zero possible value of the random variable for the number of heads? 19, A standard normal distribution is a normal a, 0 C. 2 probability distribution that has a mean , = 1 d. 3 and a standard deviation s = 0. . Which of the following is not a true statement! 20. The curve of the normal distribution extends a, The value of a random variable could indefinitely at the tails but does not touch be zero b, The probability of an event can be zero 21. The z-score is, in fact, a standard deviation c. The probability of an event can be value. greater than 1. d, The sum of all the probabilities in a 22. Normal distributions with higher standard probability distribution is always equal to one. deviation create curves with smaller height 9. Which formula gives the probability and bigger width distribution shown by the table$ 3 Choose the letter that corresponds to the P X) 176 2/6 3/6 correct answer, Write your answer on the a, P(X) = 1/X C. P[X) = 6/X space provided. b. P(X) = X/6 d. P(X) = 1/6 10. If P(X) = X/8, what are the possible values of 23. What is the corresponding area to the left of z = 0.409 X for it to be a probability distribution! a. 0.6554 0. 0.2.3 C. 0.1591 c. 2.3.4 b. 1.2.3 b. 0.1554 d. 1.1,2 d. NONE 1 1. It is a function whose domain is the sample 24. What is the corresponding area to the left space of a random experiment, and the of z = 1.987 a. 0.3365 C. 0.9761 range of values is the set of real numbers. a, Random variable b. 0.4699 d. NONE b, Discrete random variable 25. What is the corresponding area to the left c. Continuous random variable of z =-1.887 d, Probability distribution a. 0,3365 C. 0.0300 b. 0,4699 d. NONE 12. Which of the following is a probability distribution#
