Problem 2: If you score 85 or better on your midterm exam, then you have a 90% chance of getting 1.50 for the course. And you feel you have a 50% chance of scoring 85% or better. Find the probability that both your score is 85 or better and you receive an 1.50 in the course. Problem 3: A ten-peso coin is flipped twice. Calculate the probability of each of the following occurring: A head on the first flip A tail on the second flip given that the first toss was head Two tails A tail on the fist and a head on the second A tail on the first and a head on the second or a head on the first and a tail on the second At least one head on the two flips Problem 4: An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and then a second chip drawn. What is the probability of: A white chip on the first draw? A white chip on the fist draw and a red on the second d? Two green chips being drawn? A red chip on the second, given that a white chip was drawn on the first?
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Problem 2:
If you score 85 or better on your midterm exam, then you have a 90% chance of getting 1.50 for the course. And you feel you have a 50% chance of scoring 85% or better. Find the probability that both your score is 85 or better and you receive an 1.50 in the course.
Problem 3:
A ten-peso coin is flipped twice. Calculate the probability of each of the following occurring:
- A head on the first flip
- A tail on the second flip given that the first toss was head
- Two tails
- A tail on the fist and a head on the second
- A tail on the first and a head on the second or a head on the first and a tail on the second
- At least one head on the two flips
Problem 4:
An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and then a second chip drawn. What is the probability of:
- A white chip on the first draw?
- A white chip on the fist draw and a red on the second d?
- Two green chips being drawn?
- A red chip on the second, given that a white chip was drawn on the first?
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