Question

Standard Normal Distribution Binomial Distribution 21 22 Area to the left of zi Area to the left of z2 Desired Area N p X p(x) To find: Area Between Area Between 1.. 20 0.3 0.2 -1.2 0. Task 1 Compute the values in the highlighted cells 6 60 9 10 11 12 13 14 15 16 17 18 19 20 E(x) = Var(x) Task 2 Compute values in the highlighted cells and draw pdf

Answer 1

P (    0.200   < Z <    1.500   )
= P ( Z <    1.500   ) - P ( Z <   0.20   ) =
0.9332   -    0.5793   =    0.3539

P (    -1.200   < Z <    0.300   )
= P ( Z <    0.300   ) - P ( Z <   -1.20   ) =
0.6179   -    0.1151   =    0.5028

X	P(X)
0	0.0008
1	0.0068
2	0.0278
3	0.0716
4	0.1304
5	0.1789
6	0.1916
7	0.1643
8	0.1144
9	0.0654
10	0.0308
11	0.0120
12	0.0039
13	0.0010
14	0.0002
15	0.0000
16	0.0000
17	0.0000
18	0.0000
19	0.0000
20	0.0000

Mean = np =    20*0.3=       6

Variance = np(1-p) =    20*0.3*(1-0.3)=      4.2

Please let me know in case of any doubt.

Thanks in advance!

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