for my stats exam, we are NOT allowed to use a scientific or graphing cal, my professor will give us those cheap calculator from the 99cent store. I wanted to know how can i calculate e^-4.7? on my scientific it says it0.009095

but on my cheap calculator.. here is what i did.. for the -4.7 i did 1/4.7= 0.2127659

e= 2.72 <--given by professor

I did the following:

2.72 x 0.2127659 = i get 0.5787232 and NOT 0.009095

Well scientific calculators are just that scuentific!! You cant exspect a diffucult problems answer to appear on a cheap one because i am nit lying i typedm 30x 2 and it told me15 they can be faulty

Well if your cheap calculator has a exponent.

You could do 2.72^-4.7
You get 0.0090683057
It's pretty close!

To calculate e^-4.7 using a cheap calculator, you can follow these steps:

1. Calculate 1/4.7 using your calculator:

1 ÷ 4.7 = 0.2127659574 (rounded to 10 decimal places)

2. Raise the value 2.72 (given by your professor) to the power of the result from step 1:

2.72 ^ 0.2127659574 = 1.1908879019 (rounded to 10 decimal places)

The result is approximately 1.1908879019, which is different from the value you obtained using your scientific calculator (0.009095).

This discrepancy is most likely due to the limited precision of the cheap calculator from the 99-cent store. It is not able to accurately calculate the exponential function with a high degree of precision.