The following data represent the number of grams of fat in breakfast meals offered at a local fast food restaurant (a) Construct a ste (b) describe the shape of the distribution. and 12 32 3 10 7 17 19 26 29 43 31 19 20 19 4 14 15 28 26 34 (a) Construct the stem-and-leaf plot below. Legend: 5| 1 represents 51 grams of fat. (b) The distrtution is Entes your answer m each of the answer boxes.
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.
We need to arrange the data in ascending order to plot stem and leaf plot easily.
We can use excel to do it. It is the easiest way.
First we enter the given data in Excel sheet in use sort() command.
To find the shape of the distribution we find mean, media and mode of the data.
We use =average () command to calculate mean.
=Median () command to find median and =mode() command to find mode.
If mean = median= mode then distribution of the data is symmetrical.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
