Mean and Median
What is the median of this data set?
1, 5, 5, 6, 9, 10, 15, 19, 21, 22, 22, 22, 22, 27
17
Mr. Shockley loves superhero movies, specifically ________ movies
Marvel!
Kyle's school has 145 seniors, and his class rank is 11th. What is his percentile?
92nd
A distribution has a mean of 0 and standard deviation of 1, find the area below 1.6
.945
Which is explanatory, and which is response?
Football teams win-loss record/ Football teams passing yards per game
Pass yards = explanatory
win-loss = response
Mr. Shockley coaches one sport at the high school, what is it?
Volleyball
What are one difference between a bar graph and a histogram?
space between bars, x-axis is interval for histogram, x-axis is category for bar graph
What is the z-score for Johnny's test grade is he received a 94, and the class had a mean of 80 and a standard deviation of 6
2.33
Mean of 0, standard deviation of 1, find the area between -1.3 and -.1
.363
Interpret what it means to have a correlation coefficient (r) of .75
Moderate, positive linear relationship
The relationship between the mean and the median in a right-skewed distribution.
What is mean is greater than the median
Definition of range
max-min
The mean score on the SAT was 1690 with a standard deviation of 240. Tom's z-score was -.75. What was his SAT score?
1510
Mean of 0, standard deviation of 1. What value has an area of 74.3% of data to the left?
.653
Mr. Shockley has one pet, what is it?
Extra 100 points if you are specific as to what type!
French Bulldog
What is the Q1 of this data set?
1, 5, 5, 6, 9, 10, 15, 19, 21, 22, 22, 22, 22, 27
What is 6
What will a histogram of test scores most likely look like if the test was "easy"?
Skewed left
N(45,7). What percent of data falls between the interval of 38 and 59?
About 81.5% or .815
Mr. Shockley played one sport in high school, and it was...
Volleyball
Find the LSRL and the r value of the data:
x: 1 2 3 4 5 6 7 8 9 10
y: 19 17 17 18 16 15 13 12 8 6
y = -1.3394x + 21.467
r = -.9361
If the mean of 5 test scores is an 81, and we know four of the scores to be 60, 75, 90, and a 92, what must the fifth test score be?
What is an 88
What is the interval of numbers for which a data point could fall for this set of data, and not be an outlier? Does this data set have any outliers?
5 # Summary: 14, 30, 32, 41, 58
13.5 - 57.5. 58 is an outlier
What are the 3 classes that Mr. Shockley teaches at Raritan High School?
Statistics, AP Statistics, and College and Career Readiness in Math
N(48, 18.1)
What value has 39% of observations above it?
53.056
LSRL: y = 46.6 + .41x (x = grade on midterm, y = grade on final)
Interpret the slope and y-int in context
For every 1 point increase on their midterm, we can predict an increase of .41 on their final
If a student scored a 0 on their midterm, we can predict a grade of about a 47 on their final