The stem and leaf plot below shows the amounts of time (in minutes) customers parked their cars in a parking garage. there were 18 times from weekdays and 21 from weekends. use the plot to answer the questions.

Hey!

Range is the difference between the greatest and lowest numbers.

Weekdays:

Greatest: 198
Lowest: 152

198 - 152 = 46

Range = 46

Weekends:

Greatest: 199
Lowest: 152

199 - 152 = 47

Range = 47

(a) Weekdays ⇒ 46
Weekends ⇒ 47


(b) To see which had more, count how many numbers are on each side where it says 16(160)

Weekdays: 4
Weekends: 5

Answer ⇒ Weekends


(c) Median is the middle number when ordered from least to greatest. The numbers are already ordered.

Weekdays = 18 numbers
The median is the average of the 9th and 10th number

9th and 10th # = 174 + 176 

174 + 176 = 350

350 ÷ 2 = 175

Median ⇒ 175

Weekends:

There are 21 numbers. The median is the 11th number.

The 11th number is 177

Median ⇒ 177

(c) Greater median ⇒ Weekends