Students from Sandalwood High School were asked, when given the choice between math or English, which class they preferred to take during first period. The data was broken down by gender: 55 males preferred math 52 males preferred English 42 females prefered math 51 females preferred English Part A: Fill in and complete the following contingency table. Circle the largest joint frequency and put a box around the smallest marginal frequency. Sandalwood High School Survey of Preferred First Period Class Math English Total Males Females Total Part B: Which subject was preferred as a first period class and by what percentage? Part C: Males preferred which subject more? Part D: What frequency does 103/200 represent?
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
