S) A sample of candies have weights that vary from 2.35 grams to 4.75 grams. Use
ID: 3059243 • Letter: S
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S) A sample of candies have weights that vary from 2.35 grams to 4.75 grams. Use this information to find the upper and lower limits of the first dlass if you wish to construct a frequency distribution with 12 classes A) 2.35-2.65 B) 235-254 C) 2.35-2.55 D) 2.33-2.75 9) The random variable x represen ts the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has between one and three cars, inclusive. Households 428 256 3 108 483 A) 0,125 B) 0.256 C) 0.792 D) 0.208 10) A test consists of 60 multiple choice questions, each with five possible answers, only one of 10) which is correct. Find the mean and the standard deviation of the number of correct answers. A) mean: 12; standard deviation: 3.46 C) mean: 12; standard deviation: 3.1 B) mean: 30; standard deviation: 3.1 D) mean: 30; standard deviation: 5.48 11) Use the data to identify any outliers. 16 23 1 33 15 5 18 6 20 14 17 19 16 10 21 24 14 38 18 A) 1, 33, 38 B) 1,38 C) 33, 38 D) None 12) The mean score of a competency test is 82, with a standard deviation of 2. Between what two values do about 99.7% of the values lie? (Assume the data set has a bell-shaped distribution.) 12) A) Between 78 and 86 C) Between 76 and 88 B) Between 80 and 84 D) Between 74 and 90 13) Classify the events as dependent or independent. Events A and B where 13) P(A) = 0.2 P(B) = 0.1, and P(A and B) = 0.01 B) dependent 14) Classify the events as dependent or independent. 14)- The events of getting two aces when two cards are drawn from a deck of playing cards and the first card is replaced before the second card is drawn. A) independent B) dependent C-3Explanation / Answer
S) A sample of candies have weights that vary from 2.35 grams to 4.75 grams. Use this information to find the upper and lower limits of the first dlass if you wish to construct a frequency distribution with 12 classes A) 2.35-2.65 B) 235-254 C) 2.35-2.55 D) 2.33-2.75 9) The random variable x represen ts the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has between one and three cars, inclusive. Households 428 256 3 108 483 A) 0,125 B) 0.256 C) 0.792 D) 0.208 10) A test consists of 60 multiple choice questions, each with five possible answers, only one of 10) which is correct. Find the mean and the standard deviation of the number of correct answers. A) mean: 12; standard deviation: 3.46 C) mean: 12; standard deviation: 3.1 B) mean: 30; standard deviation: 3.1 D) mean: 30; standard deviation: 5.48 11) Use the data to identify any outliers. 16 23 1 33 15 5 18 6 20 14 17 19 16 10 21 24 14 38 18 A) 1, 33, 38 B) 1,38 C) 33, 38 D) None 12) The mean score of a competency test is 82, with a standard deviation of 2. Between what two values do about 99.7% of the values lie? (Assume the data set has a bell-shaped distribution.) 12) A) Between 78 and 86 C) Between 76 and 88 B) Between 80 and 84 D) Between 74 and 90 13) Classify the events as dependent or independent. Events A and B where 13) P(A) = 0.2 P(B) = 0.1, and P(A and B) = 0.01 B) dependent 14) Classify the events as dependent or independent. 14)- The events of getting two aces when two cards are drawn from a deck of playing cards and the first card is replaced before the second card is drawn. A) independent B) dependent C-3
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