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Statistics and probability

What is the formula for calculating the mean of a set of numbers?
Sum of all numbers divided by the count of numbers
Median of the numbers
Mode of the numbers
Product of all numbers
Which of the following is an example of a discrete probability distribution?
Binomial distribution
Normal distribution
Exponential distribution
Poisson distribution
What is the probability of rolling a 6 on a fair six-sided die?
4. What is the range of a data set?
The difference between the maximum and minimum values
The sum of all values
The average of all values
The product of all values
Which of the following is an example of a continuous probability distribution?
Normal distribution
Binomial distribution
Poisson distribution
Exponential distribution
What is the standard deviation of a data set?
A measure of the average deviation from the mean
The sum of all values
The difference between the maximum and minimum values
The product of all values
8. What is the formula for calculating the variance of a data set?
The sum of squared deviations from the mean divided by the count of numbers
The sum of all values
The difference between the maximum and minimum values
The product of all values
Which of the following is an example of a discrete random variable?
Number of heads obtained in flipping a coin
Height of individuals
Temperature in degrees Celsius
Time taken to complete a task
11. What is the formula for calculating the probability of an event in a binomial distribution?
NCr * p^r * q^(n-r)
NPr * p^r * q^(n-r)
N! / r! * (n-r)!
P^r * q^(n-r)
What is the mode of a data set?
The value that appears most frequently
The average of all values
The difference between the maximum and minimum values
The product of all values
Which of the following is an example of a continuous random variable?
Height of individuals
Number of cars in a parking lot
Temperature in degrees Celsius
Time taken to complete a task
15. What is the formula for calculating the probability density function (PDF) of a continuous random variable?
The derivative of the cumulative distribution function (CDF)
The integral of the CDF
The sum of all values
The difference between the maximum and minimum values
What is the median of a data set?
The middle value when the data is arranged in ascending order
The average of all values
The difference between the maximum and minimum values
The product of all values
Which of the following is an example of a discrete probability distribution?
Poisson distribution
Exponential distribution
Normal distribution
Binomial distribution
19. What is the formula for calculating the cumulative distribution function (CDF) of a discrete random variable?
The sum of the probabilities of all values less than or equal to a given value
The product of all values
The difference between the maximum and minimum values
The average of all values
21. What is the formula for calculating the expected value of a discrete random variable?
The sum of the products of each value and its corresponding probability
The sum of all values
The difference between the maximum and minimum values
The product of all values
Which of the following is an example of a continuous probability distribution?
Exponential distribution
Normal distribution
Binomial distribution
Poisson distribution
24. What is the formula for calculating the probability of an event in a Poisson distribution?
(e^(-?) * ?^r) / r!
NCr * p^r * q^(n-r)
NPr * p^r * q^(n-r)
P^r * q^(n-r)
What is the mode of a data set?
The value that appears most frequently
The average of all values
The difference between the maximum and minimum values
The product of all values
Which of the following is an example of a discrete random variable?
Number of cars in a parking lot
Time taken to complete a task
Height of individuals
Number of heads obtained in flipping a coin
28. What is the formula for calculating the probability of an event in a binomial distribution?
NCr * p^r * q^(n-r)
NPr * p^r * q^(n-r)
N! / r! * (n-r)!
P^r * q^(n-r)
What is the median of a data set?
The middle value when the data is arranged in ascending order
The average of all values
The difference between the maximum and minimum values
The product of all values
Which of the following is an example of a continuous probability distribution?
Normal distribution
Exponential distribution
Poisson distribution
Binomial distribution
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