Statistics > SOPHIA Milestone > Sophia Introduction to Statistics Unit 3 Milestone (AutoRecovered).docx. 99% APPROVED PASS RATE (All)

Sophia Introduction to Statistics Unit 3 Milestone (AutoRecovered).docx. 99% APPROVED PASS RATE

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Sophia Introduction to Statistics Unit 3 Milestone Question 1 Mark this question The average number of tunnel construction projects that take place at any one time in a certain state is 3. Find ... the probability of exactly five tunnel construction projects taking place in this state.  0.023  0.048  0.10  0.020 Question 2 Mark this question Kate was trying to decide which type of frozen pizza to restock based on popularity: pepperoni pizza or sausage pizza. After studying the data, she noticed that pepperoni flavors sold best on the weekdays and on the weekends, but not best overall. Which paradox has Kate encountered?  False Negative  Benford's Law  False Positive  Simpson's Paradox Question 3 Mark this question Using the Venn Diagram below, what is the conditional probability of event Q occurring, assuming that event P has already happened [P (Q|P)]?  0.75  0.73  0.05  0.55 Question 4 Mark this question Sarah throws a fair die multiple times, recording the total number of "2"s she throws and then calculating the proportion of "2"s she has thrown so far after each throw. She then constructs a graph to visualize her results. Which of the following statements is FALSE?  The theoretical probability of getting a 2 is 0.167 for each throw.  This is an example of the law of large numbers.  The probability distribution for the possible number of outcomes changes as the total number of throws increases.  The relative frequency of "2"s thrown changes as Sarah throws the die more. Question 5 Mark this question Which of the following is an example of a false positive?  Test results confirm that a patient does not have cancer.  Test results indicate that a patient has cancer when, in fact, he does not.  Test results indicate that a patient does not have cancer when, in fact, he does.  Test results confirm that a patient has cancer. Question 6 Mark this question Zhi and her friends moved on to the card tables at the casino. Zhi wanted to figure out the probability of drawing a face card or an Ace. Choose the correct probability of drawing a face card or an Ace. Answer choices are in the form of a percentage, rounded to the nearest whole number.  31%  4%  25%  8% Question 7 Mark this question Which of the following situations describes a continuous distribution?  A probability distribution showing the number of vaccines given to babies during their first year of life  A probability distribution showing the amount of births in a hospital in a month  A probability distribution showing the average number of days mothers spent in the hospital  A probability distribution showing the weights of newborns Question 8 Mark this question Paul went to a blackjack table at the casino. At the table, the dealer has just shuffled a standard deck of 52 cards. [Show More]

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