sample final exam

# Sample final exam - STA 2023 Nishant Patel STATISTICS Sample Final Exam The Final Exam will contain 25 questions part multiple choices and part

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STA 2023 STATISTICS Sample Final Exam Nishant Patel The Final Exam will contain 25 questions, part multiple choices and part essay type questions. The questions on the Final exam will resemble the ones on this sample exam but some variations must be expected. To study for the final exam students should not limit themselves to these questions only. Identify the data set's level of measurement. 1) the amounts of fat (in grams) in 44 cookies A) ratio B) ordinal C) interval D) nominal Identify the sampling technique used. 2) To ensure customer satisfaction, every 35th phone call received by customer service will be monitored. A) convenience B) stratified C) systematic D) random E) cluster Provide an appropriate response. 3) Use the histogram below to approximate the median heart rate of adults in the gym. A) 75 B) 65 C) 70 D) 42 4) Find the sample standard deviation. 22 29 21 24 27 28 25 36 A) 4.8 B) 1.6 C) 4.2 D) 2.8 5) A competency test has scores with a mean of 82 and a standard deviation of 2. A histogram of the data shows that the distribution is normal. Between what two values do about 99.7% of the values lie? A) Between 80 and 84 B) Between 76 and 88 C) Between 78 and 86 D) Between 74 and 90 6) SAT verbal scores are normally distributed with a mean of 426 and a standard deviation of 94. Use the Empirical Rule to determine what percent of the scores lie between 332 and 426. A) 68% B) 47.5% C) 34% D) 49.9%

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7) The cholesterol levels (in milligrams per deciliter) of 30 adults are listed below. Find the interquartile range for the cholesterol level of the 30 adults. A) 180 B) 30 C) 31 D) 211 Approximate the mean of the grouped data. 8) A) 150 B) 10 C) 148 D) 146 Provide an appropriate response. 9) A group of students were asked if they carry a credit card. The responses are listed in the table. If a student is selected at random, find the probability that he or she is a sophomore given that the student owns a credit card. Round your answers to three decimal places. A) 0.429 B) 0.571 C) 0.120 D) 0.700 10) The probability it will rain is 40% each day over a three - day period. What is the probability it will rain at least one of the three days? 11) The table lists the smoking habits of a group of college students. If a student is chosen at random, find the probability of getting someone who is a man or a non - smoker. Round your answer to three decimal places. A) 0.920 B) 0.946 C) 0.847 D) 0.942 12) The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. Find the mean and standard deviation.
13) In a raffle, 1,000 tickets are sold for \$2 each. One ticket will be randomly selected and the winner will receive a laptop computer valued at \$1200. What is the expected value for a

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## This note was uploaded on 09/28/2010 for the course STA 2023 taught by Professor Ripol during the Fall '08 term at University of Florida.

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Sample final exam - STA 2023 Nishant Patel STATISTICS Sample Final Exam The Final Exam will contain 25 questions part multiple choices and part

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