Problem 1188

A binomial experiment is given. Decide whether you can the normal distribution to approximate the binomial distribution. If you can, find the mean and standard deviation. If you cannot, explain…

Problem 1082

Find the equation of the parabola determine by the given information. Focus (6,0), directrix x = -6   Solution:-   First, notice that since the directrix is a vertical line,…

Problem 1081

Find the vertex, the focus, and the directrix.  Then draw the graph. y2 = -6x   Solution:-   An equation of the form y2 = 4px is the standard equation…

Problem 1042

The birth weights of full-term babies are normally distributed with mean 3800 grams and standard deviation σ = 470 grams. Use this information to do the following. (a)Draw a normal…

Problem 1040

One graph in the figure represents a normal distribution with mean µ = 12 and standard deviation σ = 3. The other graph represents a normal distribution with mean µ…

Problem 1039

The relative frequency histogram represents the length of phone calls on George’s cell phone during the month of September. Determine whether or not the histogram indicates that a normal distribution…