Transcript Mean, Median, and Mode - Gateway School District

Mean, Median, and Mode
COURSE 2 LESSON 1-10
Find the average of 502, 477, 593, 481, 735, and 614.
502 + 477 + 593 + 481 + 735 + 614
6
3,402
= 567
6
Divide the sum by
the number of terms.
Simplify. The mean is 567
1-10
Mean, Median, and Mode
COURSE 2 LESSON 1-10
Find the outlier of the data below. Describe how the outlier
affects the mean.
40 37 53 42 45 12 39 48
The outlier is 12, which is much lower than the other data items.
The outlier lowers the mean of the data.
1-10
Mean, Median, and Mode
COURSE 2 LESSON 1-10
Find the average of the
data in the chart.
First write the data in order
from least to greatest.
18 Responses to
“How many pizzas did you order?”
2 0 1 2 4 2
1 0 3 2 0 8
0 1 2 3 0 1
000001111222223348
The two middle values are 1 and 2.
1+2
= 1.5
2
Find the mean of the two middle values.
The median is 1.5 pizzas.
1-10
Mean, Median, and Mode
COURSE 2 LESSON 1-10
Find the average of
the data in the chart.
Favorite Pizza Topping of
Twelve People Surveyed
peppers onions
mushrooms
onions
sausage peppers
onions
peppers mushrooms
onions
sausage
Make a table to organize the data.
Peppers
Onions
Mushrooms
The mode is onions.
1-10
Sausage
onions
Mean, Median, and Mode
COURSE 2 LESSON 1-10
Suppose a teen jogs an average of 2.5 mi per day on
weekdays and 4 mi per day on weekends. How many miles does this
teen jog each week?
Multiply the weekday average by
the number of weekdays. Multiply
the weekend average by the
number of weekend days.
2.5 • 5 + 4 • 2 = 20.5
The teen jogs a total of 20.5 mi each week.
1-10
Mean, Median, and Mode
COURSE 2 LESSON 1-10
Find the mean, median, and mode of each set of data.
1. 25
27
21
27
20
mean, 24; median, 25; mode, 27
2. –8
–4
2
10
–10
mean, –2; median, –4; mode, no mode
3. 7.5
3.6
15.4
3.6
15.4
mean, 9.1; median, 7.5; mode, 3.6 and 15.4
1-10