The overhead reach distances of adult females are normally distributed with a mean of 205 cm and a standard deviation of 8.3 cm. a. find the probability that an individual distance is greater than 215.00 cm. b. find the probability that the mean for 25 randomly selected distances is greater than 203.20 cm. c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?

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 )