1. The number of hours worked each week by a teacher over the past two months are: 49 53 38 49 16 43 13 a. Find the mean, b. Find the median c. Find the mode THE NATURE OF STATISTICS 10 CAROLINA SAMSON-ESTRADA Bataan Heroes College 2. Consider the data scores 8, 9, 13, 20, and 25. Solve for the Range, Mean, Standard Deviation and Variance. 3. A teacher gave a quiz to her Statistics class. Nine of the students scored: 72 81 65 60 62 51 74 71 72 a. Find the mean b. Find the median c. Find the mode d. Find the range e. Find the standard deviation 4. A vendor reported the number of cartons of cigarettes he sold for a one week period, as follows: 6, 9, 8, 7, 10, 12 and 5. Calculate the: a. Range b. Variance c. Standard deviation
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.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
