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A college reported that 40% of its population is male. Nine students are selected at random. (Consider "male" to be the success criteria in this example.) • The mean is • The standard deviation is (Round to the nearest hundredth, if necessary.) Because the distribution has a probability of success (P(S)) that is close to .5 * , the distribution is skewed left(negative skew) +

A college reported that 40% of its population is male. Nine students are selected at random. (Consider "male" to be the success criteria in this example.) • The mean is • The standard deviation is (Round to the nearest hundredth, if necessary.) Because the distribution has a probability of success (P(S)) that is close to .5 * , the distribution is skewed left(negative skew) +

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A college reported that 40% of its population is male. Nine students are selected at random. (Consider "male" to be the success criteria in this example.) • The mean is The standard deviation is (Round to the nearest hundredth, if necessary.) • Because the distribution has a probability of success (P(S)) that is close to .5 • , the distribution is skewed left(negative skew) + Use the probability distribution table to find the following probabilities. n x 0.1 0.2 0.25 0.3 0.4 0.5 0.6 0.7 0.75 0.8 0.9 9 0 0.387 0.134 0.075 0.040 0.010 0.002 0.000 0.000 0.000 0.000 0.000 1 0.387 0.302 0.225 0.156 0.060 0.018 0.004 0.000 0.000 0.000 0.000 2 0.172 0.302 0.300 0.267 0.161 0.070 0.021 0.004 0.001 0.000 0.000 3 0.045 0.176 0.234 0.267 0.251 0.164 0.074 0.021 0.009 0.003 0.000 4 0.007 0.066 0.117 0.172 0.251 0.246 0.167 0.074 0.039 0.017 0.001 5 0.001 0.017 0.039 0.074 0.167 0.246 0.251 0.172 0.117 0.066 0.007 6 0.000 0.003 0.009 0.021 0.074 0.164 0.251 0.267 0.234 0.176 0.045 7 0.000 0.000 0.001 0.004 0.021 0.070 0.161 0.267 0.300 0.302 0.172 8 0.000 0.000 0.000 0.000 0.004 0.018 0.060 0.156 0.225 0.302 0.387 9 0.000 0.000 0.000 0.000 0.000 0.002 0.010 0.040 0.075 0.134 0.387
Transcribed Image Text:A college reported that 40% of its population is male. Nine students are selected at random. (Consider "male" to be the success criteria in this example.) • The mean is The standard deviation is (Round to the nearest hundredth, if necessary.) • Because the distribution has a probability of success (P(S)) that is close to .5 • , the distribution is skewed left(negative skew) + Use the probability distribution table to find the following probabilities. n x 0.1 0.2 0.25 0.3 0.4 0.5 0.6 0.7 0.75 0.8 0.9 9 0 0.387 0.134 0.075 0.040 0.010 0.002 0.000 0.000 0.000 0.000 0.000 1 0.387 0.302 0.225 0.156 0.060 0.018 0.004 0.000 0.000 0.000 0.000 2 0.172 0.302 0.300 0.267 0.161 0.070 0.021 0.004 0.001 0.000 0.000 3 0.045 0.176 0.234 0.267 0.251 0.164 0.074 0.021 0.009 0.003 0.000 4 0.007 0.066 0.117 0.172 0.251 0.246 0.167 0.074 0.039 0.017 0.001 5 0.001 0.017 0.039 0.074 0.167 0.246 0.251 0.172 0.117 0.066 0.007 6 0.000 0.003 0.009 0.021 0.074 0.164 0.251 0.267 0.234 0.176 0.045 7 0.000 0.000 0.001 0.004 0.021 0.070 0.161 0.267 0.300 0.302 0.172 8 0.000 0.000 0.000 0.000 0.004 0.018 0.060 0.156 0.225 0.302 0.387 9 0.000 0.000 0.000 0.000 0.000 0.002 0.010 0.040 0.075 0.134 0.387
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