CHART 1 Example of Sampling Distribution
RED WHITE NUMBER OF SAMPLES
42 58 1
43 57 1
45 55 2
46 54 4
47 53 8
48 52 12 Number of red and white marbles that were
49 51 21 randomly drawn from a jar of 5,000 marbles
50 50 31 with 100 drawn each time, repeated 130
51 49 20 times for 130 independent random samples.
52 48 13
53 47 9
54 46 5
55 45 2
57 43 1
To t a l 13 0NUMBER OF SAMPLES
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14 *
13 *
12
11
10
9 **
8
7
6 *
5 ****
4 ***
3 *
2 ***
1 ** *** *
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
NUMBER OF RED MARBLES IN A SAMPLE