Determine the probability of rolling the sum of 9 with two balanced die.

2. The blood types for 40 people who agreed to participate in a medical study were as follows:

O A A O O AB O B A O
A O A B O O O AB A A
A B O A A O O B O O
O A O O A B O O A AB

What is the frequency for the A blood type?

(B) For the situation in problem 2 above, what is the relative frequency for the O blood type?

3. In Syed's town there are 11,303 Hindi speakers. In Rajiv's town there are 19,251 Hindi speakers. In Jon's town there are 1,092 Hindi speakers. For this situation, what is the variable under consideration?

Solution Summary

The posting answers three questions on probability of two rolled die, the frequency of blood types and Hindi speakers.

If a die rolled one time, classical probability would indicate that the probability of a "two" should be 1/6. If the die is rolled 60 times and comes up "two" only 9 times, does this suggest that the die is "loaded"? Why or why not?
It is reported that about 35% of adults attend sports event during the previous year. W

8. In Syed's town there are 11,303 Hindispeakers. In Rajiv's town there are 19,251 Hindispeakers. In Jon's town there are 1,092 Hindispeakers. For this situation, what is the variable under consideration?
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What is the probability that the wheel lands on 0?
A die is loaded so that the numbers 2 through 6 are equally likely to appear, but 1 is three tim

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The distribution of bloodtypes for a population are:
40% typeA
9% type B
49% type O
2% type AB
Suppose that the bloodtypes are independent and that both the husbandand the wife follow this distribution of bloodtype.
a) If the wife has type B, what is the probability that the husband has type B?
b) What is the pr