The box-and-whisker plot below shows the number of years of teaching experience that each of 52 teachers has at Northridge Middle School. What is the total number of teachers at Northridge with at least 10 years of experience?
39
Oops!
Check
Okay!
Check
15
What is the range?
30
Oops!
Check
Okay!
Check
10
A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:
B
Oops!
Check
Okay!
Check
25
Mackenna has taken four science tests and scored a 92, 78, 89 and 95. She has one more test and wants to finish the marking period with a 90%. What does she have to get on the fifth test to finish with a 90?
96
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
gold
Win 50 points!
Okay!
shark
Other team loses 25 points!
Okay!
banana
Go to last place!
Oops!
10
Biased or unbiased? Mr. Sherman wants to know the favorite sport of people at his school so he asks his baseball team.
biased
Oops!
Check
Okay!
Check
thief
Give points!
5
10
15
20
25
star
Double points!
Okay!
rocket
Go to first place!
Okay!
baam
Lose 15 points!
Oops!
15
Find the Mean Absolute Deviation: 10, 9, 3, 8, 10.
2
Oops!
Check
Okay!
Check
10
Which box and whisker plot has a median of 50?
Plot 2
Oops!
Check
Okay!
Check
15
The superintendent of a large school district is conducting a survey in which teachers are asked how they prefer to make up snow days. Which sample would provide the least bias?
C
Oops!
Check
Okay!
Check
heart
Other team wins 25 points!
Oops!
magnet
Take 15 points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 20 points!
Oops!
15
Find the median.
3
Oops!
Check
Okay!
Check
25
Find the five number summary: lower extreme, Q1, median, Q3 and upper extreme.
4, 7.5, 12, 13.5, 16
Oops!
Check
Okay!
Check
25
$25
Oops!
Check
Okay!
Check
20
Dr. Dre is a dentist. He needs to report on the number of cavities that his patients have. Find the mean, median, and mode. 1, 0, 1, 5, 0, 3, 4, 2.
Mean = 2, Median = 1. 5, Mode = 0 and 1
Oops!
Check
Okay!
Check
25
Construct a box and whisker plot for the data: 74, 69, 83, 79, 60, 75, 67, 70