You can use a TI-84 calculator to do this task:
1) Select 2nd->DISTR
2) Scroll to "2: normalcdf" (stands for Normal Cumulative Distribution Function)
3) Set your "lower" and "upper" to -2.5 and -2 respectively
4) Set your mean to "μ: 0" and standard deviation to "σ: 1"
5) Select "Paste" and then press "ENTER" to get your area
6) You should get approximately 0.0165 if you did the steps correctly
Therefore, the area under the standard normal curve that lies between
z = – 2.5 and z = – 2 is 0.0165
Hope this helped!
