Find the indicated area under the curve of the standard normal​distribution; then convert it to a percentage and fill in the blank. About​ ______% of the area is between z equals = minus −2 and z equals =2 ​(or within 2 standard deviations of the​ mean). About nothing ​% of the area is between z equals = minus −2 and z equals =2 ​(or within 2 standard deviations of the​ mean).