Inheritance: System.Windows.Forms.Form
 private void calculateVarianceToolStripMenuItem_Click(object sender, EventArgs e)
 {
     calculateVariance = new calcVar(sensor);
     calculateVariance.Show();
 }
 private void calculateVarianceToolStripMenuItem_Click(object sender, EventArgs e)
 {
     calculateVariance = new calcVar(sensor);
     calculateVariance.Show();
 }