The stem-and-leaf display below gives the number of minutes that customers waited for their orders at two different restaurants. There were 22 wait times recorded for the first restaurant and 11 recorded for the second. Use the display to answer the questions that follow.Number of minutes customers waitedFirst restaurant Second restaurant7 6 5 06 9 7 6 4 0 11 5 6 7 8 8 7 6 6 5 0 0 27 9 9 9 9 6 4 33 9 3 2 0 4 Key: ← 5 5| 0 →|6 6(a)What were the ranges of wait times for the two restaurants?First restaurant Second restaurant (b)Which restaurant had the greater median wait time? First restaurant Second restaurant The medians were the same(c)Which restaurant had more wait times from 30 to 39 minutes? First restaurant Second restaurant Each had the same

First restaurant:The first digit is the stem (middle number), and the second digit is the leaf (left…

Answered: The stem-and-leaf display below gives…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The stem-and-leaf display below gives the number of minutes that customers waited for their orders at two different restaurants. There were

wait times recorded for the first restaurant and

recorded for the second. Use the display to answer the questions that follow.

Number of minutes customers waited

First restaurant		Second restaurant
7 6 5	0	6 9
7 6 4 0	1	1 5 6 7
8 8 7 6 6 5 0 0	2	7 9 9
9 9 6 4	3	3 9
3 2 0	4

Key:

← 5 5|

→|6 6

(a)What were the ranges of wait times for the two restaurants?

First restaurant

Second restaurant

(b)Which restaurant had the greater median wait time?

First restaurant

Second restaurant

The medians were the same

(c)Which restaurant had more wait times from

minutes?

First restaurant

Second restaurant

Each had the same

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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