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4.1 - 1Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
a. A person has type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 2Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
a. A person has type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 3Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
a. A person has type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 4Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
a. A person has type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 5Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
a. A person has type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 6Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
b. A person has type A or type B blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 7Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
b. A person has type A or type B blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 8Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
b. A person has type A or type B blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 9Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
b. A person has type A or type B blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 10Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
b. A person has type A or type B blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 11Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
b. A person has type A or type B blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
22 550
2750 54%
4.1 - 12Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 13Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 14Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 15Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 16Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 17Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 18Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 19Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 20Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 21Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
c. A person has neither type A nor type O blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 22Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 23Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 24Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 25Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 26Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 27Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 28Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 29Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
4.1 - 30Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood.
Type FrequencyA 22B 5
AB 2O 21
Total 50
22 5 21
504850
4.1 - 31Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved.
Example: Blood TypesIn a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB blood. Set up a frequency distribution and find the following probabilities.
d. A person does not have type AB blood. Alternative SolutionSince there are 50 total people in the population and 2 with Type AB
blood, then 50 – 2 = 48 people do not have Type AB blood
Type FrequencyA 22B 5
AB 2O 21
Total 50
50 250
4850 96%