1) Find P(A') given that P(A)=0.50 a) 50 b) 0.50 c) 0.05 2) Find P(A') given that P(A)=0.75 a) 0.75 b) 0.25 c) 25 d) 75% 3) Given the following list of 10 numbers, what is P(x>40)? 15, 35, 17, 55, 92, 73, 40, 27, 99, 40 a) 3/10 b) 2/10 c) 4/10 d) 10/10 4) Given the following list of 10 numbers, what is P(x<50)? 15, 35, 17, 55, 92, 73, 40, 27, 99, 40 a) 6/10 b) 2/10 c) 4/10 d) 10/10 5) What is the smallest probability possible? a) 0.99 b) 1% c) 0 d) 1 e) 0.001 6) What number represents absolute probability? a) 1 b) unknown c) ABS d) 99.9% 7) What is the correct way to say P(x)? a) P of x b) Probability parentheses x parentheses c) Probability of x 8) If you flip a coin 30 times, count the number of times it landed on heads then divide that number by 30, you will get a) the experimental probability of heads b) the theoretical probability of heads 9) Which trial will give you the most accurate results? a) flipping a coin 50 times to find P(heads) b) flipping a coin 5 times to find P(heads) c) flipping a coin 1 to find P(heads) d) flipping a coin 500 times to find P(heads) e) flipping a coin 5000 times to find P(heads) 10) Given the following list of 11 numbers., what is P(x≤4): 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5 a) 4/11 b) 7/11 c) 4/5 d) 9/11 11) Which of these is the complement of P(A) a) 0.57 b) P(A') c) P(A) is pretty d) 1+P(A) 12) You randomly pick a number between 1 and 10. What is the probability of selecting an odd number? Make sure your fraction is reduced a) 55/100 b) 10/10 c) 1/2 d) 4/5 13) Which is more likely to occur if P(A)=0.74 and P(B)=0.18 a) P(A) b) P(B) 14) Which is less likely to occur if P(A)=0.23 and P(B)=0.22 a) P(A) b) P(B) 15) Which of the following cannot be a probability? a) 17% b) 17/100 c) 17/17 d) -17/100 16) What is the theoretical probability of rolling a 3 on a 6 sided die? a) 1/6 b) 1/3 c) 1/2 d) 2/3 e) 5/6 f) 1 17) What is the theoretical probability of rolling anything but a 2 on a 6 sided die? a) 1/6 b) 1/3 c) 1/2 d) 2/3 e) 5/6 f) 1 18) What is the frequency of the outcome 4  a) 1 b) 4 c) 12 d) 8 e) 9 19) What is the probability of outcome 2 (Total frequency = 34)  a) 1/34 b) 8/34=4/17 c) 9/34 d) 4/34=2/17 e) 2/34 = 1/17 20) What is the Total frequency?  a) 1 b) 4 c) 19 d) 22 e) 34 21) What is the P(4') a) 1/34 b) 100% c) 1 d) 0 e) 33/34 22) Based on the results of 34 trials, how many 3's would you expect to get if there were 340 trials? a) 4 b) 40 c) 30 d) 200

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