Find what is the probability that three are business

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Reference no: EM13120097

Probability Calculation - explained

1. A class has 10 business majors and 15 econ majors. If Five students are chosen at random, what is the probability that three are business major and two are econ majors?

2. The average time it take to travel from here to three is 30 minutes. The standard deviation is 5 minutes. About 68% of trips take within what range of time?

3. Test 1-4 are weighted differently. Calculate the average test score using the data below

Test Weight score

1 20% 60

2 20% 80

3 20% 70

4 40% 90

Reference no: EM13120097

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