Скачать или смотреть Tip358 Area Under Bell Curve In Excel FINAL

Discover how to draw area chart under bell curve.

To find the area under a normal curve in Excel, you can utilize the NORM.DIST and NORM.S.DIST functions. For instance, to calculate the area under the curve between two specific values, you would subtract the cumulative distribution function (CDF) value of the lower bound from the CDF value of the upper bound using the NORM.DIST function. Yes, you can indeed compute the area under the curve in Excel by employing various statistical functions. The area of a bell curve, synonymous with a normal distribution, is determined by calculating the probability between specific data points or within certain standard deviations from the mean using Excel functions like NORM.DIST or NORM.S.DIST. The area under the part of a normal curve is essentially the probability of observing values within a given range, found by computing the difference between two cumulative distribution function (CDF) values. As for a random curve, the approach would depend on the nature of the curve and the data it represents, often involving numerical integration techniques or specific mathematical functions tailored to the curve's characteristics.

Here are the steps outlining my video.

Cumulative Probability

=IF(AND(D2＞=$I$2,D2＜=$J$2),E2,0)

Add To Chart
1) Select curve
2) Chart Design ~ Data ~ Select Data
3) Add
4) Series X value is Grades
='BELL CURVE'!$D$2:$D$76
5) Series Y value is Cumulative Probability
='BELL CURVE'!$F$2:$F$76
6) OK
7) OK

Add Area Chart Under Curve
1) Select any curve
2) Chart ~ Type ~ Change Chart Type
3) Series 1 = Line
4) Series 2 = Area
5) OK

Change Color
1) Right click area chart
2) Format Data Series...
3) Fill & Line
4) Fill = Light blue
5) Line = No Line


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