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and 4p-1. Find the value of (a) -3√TI (b)-3-√II (c) -3+√II (d) 3-√II Use the following to answer questions 35 and 36 Suppose that p(x) = c/3.x = 1.2. is the probability function for a random variable X. 35. Determine e. (A) 2 (b) 2.25 (c) 1.5 (d) 1.8 36. Find P(2 ≤X <5) (a) (c) (d) 37. Which of the following is a false property of a standard normal distribution? 1: the mean is zero (0) and the standard deviation is 1. II: the distribution is symmetric about the mean III: the mean, mode and median are the same. IV: P(-1 SZ≤1)=0.68. (a) I only (b) IV only (c) All the above (d) None of the above. 38. Let C and D be two events with P(C)=0.25, P(D)=0.45, and P(Cn D) 0.1. What is P(C n D)? (A) 0.35 (b) 0.15 (c) 0.1125 (d) 0.045 39. What percentage of a normal distribution is found within a range of z scores from P(-25 Z≤2 (a) 68% (b) 80% (c) 95% (d) 54% 40. Suppose X is a random variable with E(X)=5 and Var (X) =2. What is E(X²) (A) 27 (b) 25 (c) 4 (d) 24 W.A. Pels. J. A. Kessie, FK Bukari & K. A Asosega Par of 12

and 4p-1. Find the value of (a) -3√TI (b)-3-√II (c) -3+√II (d) 3-√II Use the following to answer questions 35 and 36 Suppose that p(x) = c/3.x = 1.2. is the probability function for a random variable X. 35. Determine e. (A) 2 (b) 2.25 (c) 1.5 (d) 1.8 36. Find P(2 ≤X <5) (a) (c) (d) 37. Which of the following is a false property of a standard normal distribution? 1: the mean is zero (0) and the standard deviation is 1. II: the distribution is symmetric about the mean III: the mean, mode and median are the same. IV: P(-1 SZ≤1)=0.68. (a) I only (b) IV only (c) All the above (d) None of the above. 38. Let C and D be two events with P(C)=0.25, P(D)=0.45, and P(Cn D) 0.1. What is P(C n D)? (A) 0.35 (b) 0.15 (c) 0.1125 (d) 0.045 39. What percentage of a normal distribution is found within a range of z scores from P(-25 Z≤2 (a) 68% (b) 80% (c) 95% (d) 54% 40. Suppose X is a random variable with E(X)=5 and Var (X) =2. What is E(X²) (A) 27 (b) 25 (c) 4 (d) 24 W.A. Pels. J. A. Kessie, FK Bukari & K. A Asosega Par of 12

Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.2: Probability
Problem 3E: The conditional probability of E given that F occurs is P(EF)=___________. So in rolling a die the...
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and 4p-1. Find the value of (a) -3± √TI (b)-3-√II (c) -3+√II (d) 3-√II Use the following to answer questions 35 and 36 Suppose that p(x) = c/3.x = 1.2. is the probability function for a random variable X. 35. Determine e. (a) 2 (b) 2.25 (c) 1.3 (d) 1.8 36. Find P(2 ≤X<5) (a) (c) (d) 37. Which of the following is a false property of a standard normal distribution? I: the mean is zero (0) and the standard deviation is 1. II: the distribution is symmetric about the mean III: the mean, mode and median are the same. IV: P(-1 SZ≤1)=0.68. (a) I only (b) IV only (c) All the above (d) None of the above. 38. Let C and D be two events with P(C)=0.25, P(D)=0.45, and P(Cn D)= 0.1. What is P[CD)? (A) 0.35 (b) 0.15 (c) 0.1125 (d) 0.045 39. What percentage of a normal distribution is found within a range of z scores from P(-2 Z≤2 (a) 68% (b) 80% (c) 95% (d) 54% 40. Suppose X is a random variable with E(X)=5 and Var (X)=-2. What is E(X²) (A) 27 (b) 25 (c) 4 (d) 24 W.A. Pels. J. A. Kessie, F. K. Bukari & K. A. Ausega 58 Page 8 of 12 Scanned by TapScanner
Transcribed Image Text:and 4p-1. Find the value of (a) -3± √TI (b)-3-√II (c) -3+√II (d) 3-√II Use the following to answer questions 35 and 36 Suppose that p(x) = c/3.x = 1.2. is the probability function for a random variable X. 35. Determine e. (a) 2 (b) 2.25 (c) 1.3 (d) 1.8 36. Find P(2 ≤X<5) (a) (c) (d) 37. Which of the following is a false property of a standard normal distribution? I: the mean is zero (0) and the standard deviation is 1. II: the distribution is symmetric about the mean III: the mean, mode and median are the same. IV: P(-1 SZ≤1)=0.68. (a) I only (b) IV only (c) All the above (d) None of the above. 38. Let C and D be two events with P(C)=0.25, P(D)=0.45, and P(Cn D)= 0.1. What is P[CD)? (A) 0.35 (b) 0.15 (c) 0.1125 (d) 0.045 39. What percentage of a normal distribution is found within a range of z scores from P(-2 Z≤2 (a) 68% (b) 80% (c) 95% (d) 54% 40. Suppose X is a random variable with E(X)=5 and Var (X)=-2. What is E(X²) (A) 27 (b) 25 (c) 4 (d) 24 W.A. Pels. J. A. Kessie, F. K. Bukari & K. A. Ausega 58 Page 8 of 12 Scanned by TapScanner
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