Can someone assist me with this?
Homework 8
Math 111E
24 points
Due: April 23, 2024
Scan your answers (show your work!), then upload them to WVSU Online or e-mail them to
[email protected]. If you prefer to hand them in on paper, that’s fine, too.
1. Consider this data: 23, 25, 27, 29, 31, 31, 31, 32, 34, 36, 38, 42, 43, 45, 45, 46, 46, 46, 51, 52,
53, 54.
(a) Find the mean, median, mode and midrange.
(b) Find the range and standard deviation.
(c) Create a grouped distribution for it with five groups.
(d) Draw a stem-and-leaf plot for it.
(e) Find the z-score of 51.
(f) Find the quartiles.
2. A poll of 600 people was taken on people’s favorite ice cream flavor. Suppose the pollstsers
reported 35% of those surveyed said their favorite flavor was “chocolate”. Assuming the data
is normally distributed, what range of percentages chose “chocolate”?
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