Use the given values of n and p to find the minimum usual value μ - 2σ and the maximum usual value μ + 2σ. n = 290, p = 1/4

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.