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# ch_5 - h 2 A certain question on a test is answered...

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Chapter 6 MATH – 200 Form B 1. Results of statistics examination are normally distributed with a mean of 74 and a standard deviation of 8. Find the probability of individuals that scores as indicated below: (a) Between 74 and 80. a. ____________________ (b) Between 58 and 82. b. ____________________ (c) Less than 78. c. ____________________ (d) Greater than 70. d. ____________________ (e) Greater than 80. e. ____________________ (f) Between 76 and 86 f. ____________________ (g) Between 60 and 72 g. ____________________ (h) If 40 different applicants are randomly selected, find the probability that their mean is above 77

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Unformatted text preview: h. ____________________ 2. A certain question on a test is answered correctly by 10% of the respondents. Find the probability that among the next 10 respondents, there will be more than 5 correct answers. __________________________ 3. For the 500 seniors at the high school, the mean score on a standardized test is 530 and the standard deviation is 230. If a sample of 49 of these students is randomly selected without replacement, find the probability that the mean for this sample group is less than 500. _________________________...
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ch_5 - h 2 A certain question on a test is answered...

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