Step by step please?

Sorry for bad English  The Hawk Laser guided missile is 70% percent accurate, said missile  misses target 4 times in a row. What are the chances/probability/percentage of this happening?


So how do I calculate the percentage of data within one standard deviation of the mean

I was given an ungrouped  frequency chart and asked to construct a histogram, find the mean, the standard deviation and the percentage of data within one, two, and the standard deviations of the... more

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