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.

A. If a die is rolled one time, classical probability would indicate that the probability of "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?
b. if has been reported that about 35% of U.S. Adults attended a sports event during the p

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

1. Two balanced dice are rolledand the number of dots facing up is added. Find the probability that the sum is 10 or 12.
2. Two balanced dice are rolled to see the number of dots facing up. Find the probability of observing
a) Six dots on both the dice.
b) Six dots on the first die or six dots on the second die.

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?
9.The members of a board of directors have the following roles: president (P), vice president (V), secretary (S),

You roll two fair dice, a red one and green one
a. what is the probability of getting a 4 on the red die and a 2 on the green die?
b. what is the probability of getting a 4 on the red die or a 2 on the green die?
c. suppose we know that a 4 was rolled on one of the dice. What is the conditional probability of that the s

A single die is rolled once. You lose $12 if a number divisible by 3 turns up. How much should you win if a number not divisible by 3 turns up for the game to be fair?
How would I set this up, and what formulas?

(A roulette wheel has 38 numbers: 18 red, 18 black, a 0, and a 00 (0 and 00 are neither red nor black). When the wheel is spun, all numbers are equally likely to be selected.)
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

There's 4 6-sided dice rolled independently. Set Y1 to be sum of the numbers on the first and second dice, Y2 to be sum of numbers on the third and fourth dice.
Convolve PMFs of Y1 & Y2 to find the probability of the outcome of the 4 rolls summing to be 8.