For any set of data, at least of the data will be within two standard deviations of the mean. For a bell-shaped distribution, approximately of the data will be within two standard deviations of the mean

This is not a factor that you should use to determine the content of your presentation. your audience your goals your purpose your technology

Hashtags serve to identify the topic of a given tweet true false

What questions about an audience should be asked during presentation preparation? check all that apply. what does the audience already know about the topic? how will multimedia tools inspire the audience? is the information interesting and engaging? how will this information affect the presentation? will the audience change the message’s purpose? what is likely to interest the audience?