18 questions
A student completed six different assignments with the scores shown below. What is the student's average (mean) for the class?
90, 100, 95, 85, 60, 80
2, 4, and 6
Which city has a higher median electric bill?
Elliot says almost everyone arrived at the party after 10:00 P.M., but Ashley thinks most people came earlier. When did a majority of the people arrive?
18
1
Solve for y:
3y + 6 + 4y - 7 = -8
Solve for h:
10(h + 1) - 4 = 76
The mean life of a tire is 30,000 km. The standard deviation is 2000 km.
Then, 68% of all tires will have a life between ___________ km and __________ km.
28,000 km and 32,000 km.
24,000 km and 34,000 km.
26,000 km and 34,000 km.
27,000 km and 31,000 km.
Perform the pictured summation. (remember, this greek letter is called a "sigma")
Stephanie is collecting data points for her research project. As she graphs the histogram, what trend does that data begin to show?
Symmetrical data (Bell Curve)
Right-skewed data
Left-skewed data
There is no trend shown in the graphed data