2016 Update

Task/Statistics-Basic/Run-BASIC/statistics-basic.run

@@ -0,0 +1,42 @@
+call sample    100
+call sample   1000
+call sample  10000
+
+end
+
+sub sample n
+    dim samp(n)
+    for i =1 to n
+        samp(i) =rnd(1)
+    next i
+
+    ' calculate mean, standard deviation
+    sum		= 0
+    sumSq	= 0
+    for i = 1 to n
+        sum	= sum + samp(i)
+        sumSq	= sumSq + samp(i)^2
+    next i
+    print n; " Samples used."
+
+    mean	= sum / n
+    print "Mean    = "; mean
+
+    print "Std Dev = "; (sumSq /n -mean^2)^0.5
+
+    '------- Show histogram
+    bins = 10
+    dim bins(bins)
+    for i = 1 to n
+        z	= int(bins * samp(i))
+        bins(z) = bins(z) +1
+    next i
+    for b = 0 to bins -1
+    print b;" ";
+       for j = 1 to int(bins *bins(b)) /n *70
+            print "*";
+        next j
+        print
+    next b
+    print
+end sub