This data is from a sample. Calculate the mean, standard deviation, and variance. Suggestion: use technology. Round answers to two decimal places.
29.5
14.7
31
35.2
32.6
12.9
49.2
26.4
Mean = 28.93
Standard Deviation = 6676.641
Variance = 1
Enter an integer or decimal number (more..)
Ooops - now you discover that the data was actually from a population! So now you must give the
population standard deviation.
Population Standard Deviation =

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

For what value of (y) is 3^3/3^y =1/9

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.