Assume the readings on thermometers are normally distributed with a mean of 0degreesc and a standard deviation of 1.00degreesc. find the probability that a randomly selected thermometer reads between negative 0.75 and negative 0.07 and draw a sketch of the region.

The thermometer nicely obeys a unit normal distribution so we just want the area under the Gaussian from to . That's a sketch of the standard bell curve with the region between -.75 and -.07 shaded in; I'll leave the actual sketching to you.

The standard normal table often only lists , the integral of the unit normal from negative infinity to z, for z>0. For negative z we need ,

We can round that to

the correct option is b

step-by-step explanation: