I need help with 20-22 Ple Chart of Blood Type How many donors in this sample ha

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I need help with 20-22

Ple Chart of Blood Type How many donors in this sample had blood type A? (a) 20 (b) 15 (c)s (d) 18 (e) 20 18, fromm (b) Theoretically (c) Subjectively (d) all above ways 19. Karen and Jason roil two dice 50 times and record their results in the accompanying chart. Sum of the rolls of two dice 3, 5, 5, 4, 6, 7, 7, 5, 9, 10, 12, 9, 6, 5, 7, 8, 7, 4, 11, 6, 8, 8, 10, 6, 7, 4, 4, 5, 7, 9, 9, 7, 8, 11, 6, 5, 4, 7, 7, 4, 3, 6, 7, 7, 7, 8, 6, 7, 8, 9 What is their empirical probability of rolling a 7? (a) 26 (b) 0.26 (c)-0.26 (d) 0.7 20. Using the information in Question 19, what is the relative trequencies of rolling a 6? (a) 14% (b) 6% (c) 0.6 (d) None of above 21. When you roll two fair dice, what is the theoretical probability of rolling a 6? (a) 1/6 (b) 1/7 (c) 5/36 (d) 1/2 22. The probability that the SU basketball team will win a championship this year is 0.8. What types of this probability is (a) Empirical probability (b) Theoretical probability

Explanation / Answer

21

the outcome space is 6*6 = 36 , for 2 fair dice

and 2 roll a six means the sum of the 2 dice should be six which is possible when

1,5, 5,1 3,3 2,4 4,2

so there are 5 instances

so total probability is 5/36

22

please note that

emperical probability is based on experiments conducted

while theoritical probability doesnt involve no experiments , Instead, you use what you know about the situation to determine the probability of an event occurring.. such as rolling a die , where the probability of getting 1 is 1/6 , no experiment is needed to arrive at this

so winning of basketball teams must be based on past performance of the team where the team won , say 8 times out of 10 .hence it is emperical probability

Please note that we can answer only 1 question at a time , as per the answering guidelines . I hav answered 2

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