Statistical Questions
Mean
Median
Study guide...sort of
non-statistical
100
Is this a statistical question?
How many students are wearing Jordan's in this class?
No.
100
Shamiya's grades are lest below:
ELA 75
Math 70
Social Studies 75
Science 80
What is the mean of her grades?
75
100
Grades for the Unit 1 Common Assessment are listed below:
88, 99, 100, 75, 53, 88, 90
88
100
Nine children went to the doctor to get weighed. Their weights were 48 lbs., 50 lbs. ,60 lbs., 65 lbs., 83 lbs., 85 lbs., 95 lbs., 90 lbs., and 99 lbs. What is the median of their weights?
A. 99 B. 83 C. 675 D. 75
B. 83
100
Is this a statistical question?
" What is your favorite color? "
yes
200
Should a statistical question have a single answer?
No, a statistical question should have multiple answers that vary
200
Julia misses the bus every day, she was trying to figure out how many minutes to leave to get to the bus on time. She asked her friends how many minutes early they arrive at their bus stop,
Here's what they said:
4, 6, 10, 7, 5, 5, 6, 5
What is the average time Julia's friends get to the bus?
6 minutes
200
10 students were sked how many ice cream scoops they prefer, here are the responses:
1, 3, 4, 2, 1, 1, 2, 2, 1, 2
What is the median number of ice cream scoops?
2
200
Members of the book club rated their current reading book. The scores were 100, 98, 91, 73, and 73. What is the average of the scores?
5 B. 73 C. 91 D. 87
D.
200
Is this a statistical question or non-statistical question?
" What color are the walls in Jonesboro Middle school? "
Nonstatistical
300
is this a statisical question does the watson family watch tv?
no.
300
Students were asked how many pencils they had in their bookbag. The responses are below:
1, 1, 2, 3, 4, 4, 5, 6, 7, 7
What's the mean?
40/10 = 4
300
What is the median? 103, 23, 156.5, 105.5, 145
105.5
300
Kayla has received the following grades on her first three math tests: 84, 92, 86. Kayla is preparing to take her fourth math test.
In order to have a mean of 87 for all four tests, Kayla needs to score _________on her fourth test
86
300
Define a non-statistical question.
a question that doesn't have variability
you can only get one answer
400
Is this statistical? What is the average weight of 11th grade students in America?
No
400
What is the average grade for a student who's grades are: 13, 29, 69, 69, 23, 97.
50
400
Students were polled and asked instead of 180, how many days should the school year last?
Here are their response:
100, 89, 46, 78, 72, 45, 99, 100, 30
What is the median?
78
400
Kayla has received the following grades on her first three math tests: 84, 92, 86. Kayla is preparing to take her fourth math test
Kayla found out she made a 86 on her fourth test. The mean for her tests is now_______________
87
400
which statement is a nonstatistical question? how many books do you own? or what is Mr. Montgomery's favorite color?
how many books do you own?
500
Is this a statistical question?
What is the favorite sport of each student in this class?
Yes
500
Ms. Jones asked her students how many times did they get ice cream last week. Their response are below:
5, 0, 0 ,5, 4, 2, 0, 1, 2
What is the mean?
2
500
What is the median? 47, 37, 49, 25, 12, 13, 57
37
500
Double Jeopardy
What is the mean?
4.93 or 4.9285714286
500
Define statistical question
A question that anticipates variability in responses
you can get multiple answers