Dwayne and alisha both correctly graphed a standard normal curve. which of the following statements is true?
neither the means nor the standard deviations of dwayne’s and alisha’s graphs must be the same.
the means of dwayne’s and alisha’s graphs must be the same but not the standard deviations.
the standard deviations of dwayne’s and alisha’s graphs must be the same but not the means.
both the means and the standard deviations of dwayne’s and alisha’s graphs must be the same.

The correct answer is "Both the means and the standard deviation of Dwayne's and Alisha's graphs must be the same."

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Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )