QUESTION 27 The treatment cost of a certain medical condition is modelled by one insurance company as a normal random variable
with a mean of R775 and standard deviation of R150. What is the probability that a single treatment will cost less than
R1 000?

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answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

answer is x<

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.