Assuming that this tumor occurs as usual, find the mean number of cases in groups of 18 comma 745 children. b. using the unrounded mean from part (a), find the probability that the number of tumor cases in a group of 18 comma 745 children is 0 or 1. c. what is the probability of more than one case? d. does the cluster of four cases appear to be attributable to random chance? why or why not?

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle. what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle. what is the measure of angle a? enter your answer in the box. m∠a= 3.)quadrilateral abcd is inscribed in this circle. what is the measure of angle b? enter your answer in the box. m∠b= °4.)quadrilateral abcd is inscribed in this circle. what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle. what is the measure of angle c? enter your answer in the box.°

Write the equation of the circle centered at (10,-2) with radius 2

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2