in order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. the mean of the sample is determined to be 23. the number of degrees of freedom for reading the t value is

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here