91影视

Density Curve is a graphical representation of numerical distribution, having variable outcomes that are continuous (which can take non whole values), like weight =$45.3$

It shows likelihood ( probability) of continuous variable' outcomes. As total probability = $1$, total area under the curve is also equal to $1$.

Percentage of total observations that lie within a range is equal to percentage of area under the curve between the corresponding values.

As under the density curve that lies to the left of $10=0.654$out of total area = $1$, so percentage of observations less than$10=65.4\%鈥�$

Hence, percentage of observations that are at least 10 includes observations that are greater than or equal to 10. These observations are to the right of $10$, so $1-0.654=34.6\%$