Math 100
Statistical Question? Yes or No
How many minutes do students in our class spend on homework each night?
Solve: 4 + 5x
when x=7
39
Jackson traveled 500 miles at a rate of 25 mph. How long did it take him to get to his vacation?
20 hours
4/5 x * 2/7
Simplify. X = 3
24/35
What is the improper fraction of 9 9/8
81/8
Statistical Question? Yes or No
How many steps do you take in a day?
No!
24 inches = ___ feet
2
132 feet = ___ yards
11
The number of feet that make a yard
What is three feet?
Find the upper quartile:
16, 32, 15, 19, 12, 20, 8, 6, 12
18
What is the range of this data set?
123, 96, 55, 87, 205, 144, 154, 68
99
D = 45 miles
T = 15 minutes
R = ?
R = 3 mph
What is the average score on the Forward exam in our class?
Yes
What is step one in finding the MAD?
Find the mean
Find the MAD:
2, 3, 7, 8
2.5
6/8 divided by 1 3/5
1 1/5
Find the median:
1, 3, 5, 7
4
The average of a set of numerical data, calculated by adding all values together and dividing by the total number of values.
What is the mean?
3x(squared) + 15
______________
10
2 17/10
A measure of statistical dispersion that represents the spread of the middle 50% of a data set
What is the IQR?
Solve for x
4x = 32
8
Find the mean:
1, 3, 5, 7
4
The middle value in an ordered dataset, separating the higher half from the lower half .
What is median?
Find the lower quartile:
16, 32, 15, 19, 12, 20, 8, 6, 12
10
4 to the power of 6 is what?
4096