Agroup of 625 students has a mean age of 15.8 years with a standard deviation of 0.6 years. the ages are normally distributed. how many students are younger than 16.2 years? express answer to the nearest student.

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Write the equations in logarithmic form 9^4=6,561

What is the mean of the data set 125, 141, 213, 155, 281