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Answers to frequency distribution ch 2

# Answers to frequency distribution ch 2 - 27 51 543 47 294...

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McClave.Fall07 Frequency Distribution – Homework Solution 1. Sort the distribution by value. Value Frequency Distribution 5 132 15 543 25 37 35 57 55 162 Total 931 2. M ean = 22.16 16 . 22 931 55 162 35 57 25 37 15 543 5 132 = × + × + × + × + × = x 3. Median = 15 (931 / 2 = 465.5) 132 + 543 = 675 4. Mode = 15 (Frequency = 543) 5. Variance = 270.0 0 . 270 930 97 . 117 , 251 930 ) 47 . 1078 162 ( ) 87 . 164 57 ( ) 07 . 8
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Unformatted text preview: ) 27 . 51 543 ( ) 47 . 294 132 ( 1 931 ] ) 16 . 22 55 ( 162 [ ] ) 16 . 22 35 ( 57 [ ] ) 16 . 22 25 ( 37 [ ] ) 16 . 22 15 ( 543 [ ] ) 16 . 22 5 ( 132 [ 2 2 2 2 2 2 = = × + × + × + × + × =--+-+-+-+-= σ 6. Standard Deviation = 16.43 . 43 . 16 270 = =...
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