Vocabulary
Survey
Box and Whisker
Normal Distribution
Confidence Intervals
100
The entire group of individuals or elements that a researcher wants to draw conclusions about.
What is the population?
100
A pumpkin patch took a survey of their pumpkins to see what their average weight was. To do so they weighed the 50 of their pumpkins. All the pumpkins in the patch is the ______ and the 50 they weighed is the _______.
What is the population, sample?
100
What do we need to know about the data to make a box and whisker plot?
minimum, Q1, median, Q3, and maximum.
100
Another name for a normal distribution is ______. (Hint: its named this because of the shape of the graph.)
What is bell curve?
100
What are confidence intervals?
How confident we are that data falls between to two intervals.
200
A measure of center of the data.
What is the central tendency?
200
To figure out the average shoe size of students at Cascade High School, every 3rd student that walked into the building was asked what their shoe size was. The method the students were asked is _____.
What is systematic?
200
A box and whisker plot tells us this about the data.
The central tendency and spread of the data.
200
99.7% of the data falls between what standard deviations
3 standard deviations
200
What would be the confidence intervals of the following data from a sample?
37 35 35.2 37.3 36
What is 35 and 37.3
300
A measure of how far apart each data point is on average.
What is the spread of the data?
300
How many elements are in set A?
What is 1,000?
300
We might use the IQR instead of the range because the data has this.
What is an outlier?
300
10, 8, 6, 12, 9
49.85% of the data is between what two intervals.
What is 3 and 9?
What is 9 and 15?
300
For the following data, how confident are you that the data will fall between 78.27 and 97.73.
What is 68%?
400
Around 68% of values are within 1 standard deviation of the mean. Around 95% of values are within 2 standard deviations of the mean. Around 99.7% of values are within 3 standard deviations of the mean.
What is the empirical rule?
400
How many elements are in the set A and B?
What is 400?
400
Box and whisker plots are divided into this many sections. (Hint: 25% of the data lies in each of these sections)
What is 4?
400
Bell curves tell us this about the data.
What is the percent of data that falls between intervals?
400
What is an example of how confidence intervals are used in the real world?
Free points!
500
An interval which is expected to contain the parameter being estimated.
What is the confidence interval?
500
How many elements are set A or B?
What is 1,660?
500
12, 15, 10, 23, 25, 17, 19, 18, 22
Draw a box and whisker plot for the data and label each section.
minimum= 10
Q1= 13.5
median= 18
Q3= 22.5
maximum= 25
500
Write out the steps on the calculator to finding the percent that falls under the curve of a normal distribution. (Hint: starts with the blue button.)
2nd button
Vars scroll down once and hit enter
Type in the lower, upper, mean, and standard deviation.
Hit paste
press enter
Change decimal to percent.