Statistics Chapter 3 quiz solved with answers PDF

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Statistics quiz that is written out and solved with the correct answers to study from to prepare for exams....

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Chapter 3 quiz 1. a. 1525/2917= 0.0523 b. 875/1724= 0.5075 c. 650/1193= 0.5448 d. (728+1525)/2917= 0.772 e. 30/1193= 0.0251 f. 604/2917+ 1724/2917- 366/2917= 0.673 g. 275/2917= 0.0943 h. 875/1525= 0.5738 2. Event e can be considered unusual because there are only 30 males who earned a doctoral, out of a total of 2917 degrees earned. The probability is low: 0.025. Event g can also be considered unusual because the probability of selecting a male who earned an associate’s degree is 0.0943, which is rather low. 3. These events are independent. Scoring the best round in a four-round tournament does not ensure winning or losing the tournament. These events are mutually exclusive because they cannot happen at the same time. 4. a. (247 x246x 245)/(3x2x1)= 2,481,115 ways b. (3x2x1)/(3x2x1)= 1 c. (250x249x248)/(3x2x1) – 1= 2,572,999 ways 5. a. 247/250x 246/249x 245/248= 14,886,690/15,438,000 or 0.9643 b. 3/250x 2/249x 1/248= 6/15,438,000 = 1/2,573,000 or 0.0000003887 or 0.0000004 c. 2572999/2573000= 0.9999996113 6. 4x10x10x10x10x9= 360000 7. 30!/26!4!= 27,405 ways...