If np >5 and nq >5, estimate P (fewer than 5) with n=13 and p= 0.6 by using the normal distribution as an approximation to
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Answer:
- according to the above x²-2x-15 divided by the number below x-3 first I cancel out the x
- the we solve the next x-5 divided by x²-9 then as usual rule out the x
- now we only have x-2x-15 divided by-3 divided by-5÷x-9 now our next step is to again single the equations out
- now the next -5 divided by x-9 here there's nothing to rule out therefore the sign "÷" is changed to "×" cancel out the -5 and therefore we have