131 Query

course Mth 152

qDŽXڡXL׵assignment #014

014. `query 14

Liberal Arts Mathematics II

02-24-2009

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23:05:32

query problem 13.1.6 freq dist 35 IQ scores class width 5

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RESPONSE -->

?

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23:05:42

** These numbers might or might not be completely accurate, but the calculation of the relative frequencies as percents follows from the tallies:

91-95 1 1/50 = 2%

96-100 3 3/50 = 6%

101-105 5 5/50 = 10%

106-110 7 7/50 = 14%

111-115 12 12/50 = 24%

116-120 9 9/50 = 18%

121-125 8 8/50 = 16%

126-130 3 3/50 = 6%

131-135 2 2/50 = 4% **

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RESPONSE -->

ok

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23:15:59

query problem 13.1.10 stem and leaf for yards gained by 44 rushers

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RESPONSE -->

0 3,7

1 2,6,8,9

2 2,4,5,8,9,9

3 0,2,3,3,6,6,7,9

4 0,1,2,3,3,5,6,9

5 1,4,5,8

6 0,2,7

7 3,3,9

8 6,8

9 4

10 2

11 2

12 3

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23:16:32

** In order we get the following:

0 3 7

1 2 6 8 9

2 2 4 5 8 9 9

3 0 2 3 3 6 6 7 9

4 0 1 2 3 3 5 6 9

5 1 4 5 8 6 0 2 7

7 3 3 9

8 6 8

9 4

10 2

11 2

12 3 **

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RESPONSE -->

ok

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23:18:43

query problem 13.1.35 empirical probability distribution for letters of alphabet

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RESPONSE -->

A .208

E .338

I .169

O .208

U .078

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23:18:52

** The probabilities for A, E, I, O, U are:

.08. .13, .065, .08, .03.

The sum of these probabilities is .385

The probabilities of the letters given a vowel:

.08 / .385 = .208

.13 / .385 = .338

.065 / .385 = .169

.08 / .385 = .208

.03 / .385 = .078

These probabilities total 1. **

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RESPONSE -->

ok

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&#Very good responses. Let me know if you have questions. &#