4 An application to rate-making

M to one decimal place from (6.1.10) when a = 1.5, Ur = 30, n = 100,

X = 0.03, aq = 0 and y e = 2.33. H i n t : Der ive an expression for Ur as

a function of M and then find (by tr ial and error) the requested

numerical value of M .