{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

as3-083-soln

# as3-083-soln - Stat1181 #2.16(b Stem-and-Leaf Display for...

This preview shows pages 1–8. Sign up to view the full content.

Stat 1181  Assignment 3 – Solutions #2.16 (b) Stem-and-Leaf Display for Cost_\$_: unit = 10.0 1|2 represents 120.0 6 1|233333 14 1|44445555 (4) 1|6777 12 1|888999 6 2|00001 HI|288.0 The distribution of costs appears to be bimodal;  18 of the 30 costs are less than \$180, or 60%.  #2.29 (a) and (b) only.  (a) and (b)  To construct the frequency table, we need to determine the number of classes .  Using the 2k rule, we find 6 classes would be OK. A histogram and a frequency table follow: Frequency Tabulation for Amount Histogram 1.8 1.9 2 2.1 2.2 Amount 0 4 8 12 16 20 24 frequency

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Lower Upper Relati ve Cumul ative Cum. Rel. Class Limit Limit Midpo int Frequ ency Frequ ency Frequ ency Frequ ency at or below 1.8 0 0.0000 0 0.0000 1 1.8 1.8666 7 1.8333 3 0 0.0000 0 0.0000 2 1.8666 7 1.9333 3
Percentage Polygon Amount percentage 1.8 1.9 2 2.1 2.2 0 10 20 30 40 50

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
#3.9 (a) Summary Statistics for MPG Percentiles for MPG
Count 16 Average 25.0 Standard deviation 5.95539 Coeff. of variation 23.8216% Minimum 18.0 Maximum 44.0 Range 26.0 Stnd. skewness 4.21644 Stnd. kurtosis 5.99231

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Percentil es 1.0% 18.0 5.0% 18.0 10.0% 22.0 25.0% 23.0 50.0% 23.0 75.0% 24.0 90.0% 34.0 95.0% 44.0 99.0% 44.0
Mean =25 ; Median = 23; Mode = 23 MPG.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 11

as3-083-soln - Stat1181 #2.16(b Stem-and-Leaf Display for...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online