Question
For a sample of100,000 pages of text randomly selected from books written in English since 1800, researchers recordedthe number of different letters from the alphabet
For a sample of100,000
pages of text randomly selected from books written in English since 1800, researchers recordedthe number of different letters from the alphabet that appear on each page. LetX
representthe the number of letters. The table below shows the probability distribution of the data. Find the mean and the standard deviation of the probability distribution using Excel.
- Round the mean and standard deviation to two decimal places.
"x" P(x)
1 0.08167
2 0.01492
3 0.02782
4 0.04253
5 0.12702
6 0.0228
7 0.02013
8 0.06091
9 0.06966
10 0.00153
11 0.00772
12 0.04025
13 0.02406
14 0.06749
15 0.07507
16 0.01929
17 0.00095
18 0.05987
19 0.06327
20 0.09056
21 0.02758
22 0.00932
23 0.0236
24 0.0015
25 0.01974
26 0.00074
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started