Find the indicated probability. 1) All human blood can be "ABO" typed as belonging to one of A, B, O, or AB types. The actual distribution varies slightly among different groups of people, but for a randomly chosen person from North America, the following are the approximate probabilities: Blood Type O A B AB Probability 0.45 0.40 0.11 ? What is the probability that a randomly chosen person from North America has AB type blood? 2) Find the indicated probability. In general, the probability that a blood donor has Type A blood is 0.40. Consider 8 randomly chosen blood donors, what is the probability that more than half of them have Type A blood? 3) Find the indicated probability. IQ scores are known to be normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a randomly selected individual has an IQ score that is less than 120? 4) Find the indicated probability. An insurance company has determined that the cost of a certain medical procedure varies according to a normal distribution with a mean of $800 and a standard deviation of $40. If a new insurance claim comes in for this particular medical procedure, what is the probability the claim will be greater than $900? 5) Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets per day is normally distributed with a mean of 7 hours and a standard deviation of 1.5 hours. Five-percent of adults sleep more than how many hours per day? 6) Find the indicated probability. The age of professors at a certain university is normally distributed with an average of 45.0 years and a standard deviation of 6.0 years. If 16 professors are chosen at random for a committee, find the probability that the average age of those professors is less than 42.0 years. 7) Find the indicated probability. The age of professors at a certain university is normally distributed with an average of 45.0 years and a standard deviation of 6.0 years. If 16 professors are chosen at random for a committee, find the probability that the average age of those professors is greater than 42.0 years.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
PLEASE HELP ME UNDERSTAND: What formulas do I use? and how do I know when do use them?
Find the indicated
1) All human blood can be "ABO" typed as belonging to one of A, B, O, or AB types. The actual distribution varies slightly among different groups of people, but for a randomly chosen person from North America, the following are the approximate probabilities:
Blood Type
O
A
B
AB
Probability
0.45
0.40
0.11
?
What is the probability that a randomly chosen person from North America has AB type blood?
2)
Find the indicated probability.
In general, the probability that a blood donor has Type A blood is 0.40.
Consider 8 randomly chosen blood donors, what is the probability that more than half of them have Type A blood?
3)
Find the indicated probability.
IQ scores are known to be
What is the probability that a randomly selected individual has an IQ score that is less than 120?
4)
Find the indicated probability.
An insurance company has determined that the cost of a certain medical procedure varies according to a normal distribution with a mean of $800 and a standard deviation of $40.
If a new insurance claim comes in for this particular medical procedure, what is the probability the claim will be greater than $900?
5)
Identify the data value corresponding to the indicated percentile.
The amount of sleep an adult gets per day is normally distributed with a mean of 7 hours and a standard deviation of 1.5 hours.
Five-percent of adults sleep more than how many hours per day?
6)
Find the indicated probability.
The age of professors at a certain university is normally distributed with an average of 45.0 years and a standard deviation of 6.0 years.
If 16 professors are chosen at random for a committee, find the probability that the average age of those professors is less than 42.0 years.
7)
Find the indicated probability.
The age of professors at a certain university is normally distributed with an average of 45.0 years and a standard deviation of 6.0 years.
If 16 professors are chosen at random for a committee, find the probability that the average age of those professors is greater than 42.0 years.
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