Mean, Median, Mode, Range
The middle value when the data is in numerical order is called the ________?
Median
Arrange the values from least to greatest
What value in the data set below is the outlier?
48, 50, 53, 49, 51, 52, 102
102
True or False:
The bars in a histogram should touch.
True
Ms. McSperrin's dogs are 10 years old, 13 years old, and 2 years old. What is their mean age?
8.3 years
What is the mode(s) of this data set?
38, 40, 26, 37, 43, 40, 28, 24, 24, 46, 31
40 and 24
What are the five data points that are used in a box and whisker plot?
2. Largest #
3. Median (Q2)
4. Upper Quartile (Q3)
5. Lower Quartile (Q1)
True or False:
The outlier has a large effect on the mode of the data.
False.
The intervals on a frequency table are 0-2, 3-5, and 6-8. What interval comes next?
9-11
Ms. Chapman watches TV every night. The past seven nights she has watched 45, 30, 35, 55, 60, 70, and 45 minutes of TV. What is the median of the amount of TV she has watched?
45 minutes
What is the range of the data set?
38, 40, 26, 37, 43, 40, 28, 24, 24, 46, 31
19
What was the median test score?
(PICTURE 1)
85%
When a set of data has an outlier, the _______ should be used to accurately represent the data.
Median.
The y-axis in a histogram should be labeled what?
Frequency
The predicted temperatures in Marion, IA for this week are 2, 4, 5, 3, 1, 3, and 19. Find the mean of the data with AND without the outlier.
With outlier: 5.28 degrees
Without outlier: 3 degrees
What is the mean of the data set? Round to the nearest tenth.
38, 40, 26, 37, 43, 40, 28, 24, 24, 46, 31
34.3
What is the IQR of the 6th-grade test scores? (Q3 = 93%, Q1 = 78%)
IQR = 15
An outlier that is smaller than the rest of the data will make the mean ________. An outlier that is bigger than the rest of the data will make the mean _______.
Make a frequency table for the data.
PICTURE 3
Cat: 5
Dog: 6
Bird: 4
Fish: 3
Hamster: 2
There are 28 days in February and 7 Northstar birthdays. Make a line plot of the birthdays using the data below:
February 5th: Abby
February 10th: Mariska
February 16th: Fisher
February 18th: Cooper
February 24th: Nick and Andrew
February 27th: Beckham
- Make a number line with equal intervals
- Use an X to mark each person on the date of their birthday
5th: 1
10th: 1
16th: 1
18th: 1
24th: 2
27th: 1
After 5 basketball games, Jordan is averaging 10 points per game. He wants to raise his scoring average to 13 points a game. What will he need to score in the 6th game to raise his point average?
28 points
Did class A or class B have a higher median score? How many points higher was the median than the other class?
PICTURE 2
Class B had a higher median score. Class B had an average of 80 and class A had a median score of 77, class B's median was 3 points higher than class A's.
Find the mean of the data set with AND without the outlier.
48, 50, 53, 49, 51, 52, 102
With the outlier: 57.9
Without the outlier: 50.5
Make a line plot for the number of miles ran by the Linn-Mar cross country team.
8, 7, 8, 6, 5, 6, 6, 8, 3, 3, 3, 3, 10
3: 4
5: 1
6: 3
7: 1
8: 3
10: 1
Ms. Chapman has read an average of 34 pages of her book every night for the last 5 days. She wants to increase her average to 40 pages per day. How many pages does Ms. Chapman need to read on day 6?
70 pages