Statistics
An ice cream parlor has 3 kinds of ice cream, 2 types of cones, and 5 kinds of toppings. How many different possible combinations are there?
30
Rewrite the percentage as a decimal:
48%
0.48
-1+(-5)
-6
Lincoln Junior High School asked all of their eighth grade students the question, “What is your favorite breakfast?” and 18% answered “pancakes.”
Is the following conclusion valid?
18% of all students at Lincoln Junior High School have breakfast as their favorite meal.
No. The conclusions can only apply to eighth graders.
Rewrite the fraction as a decimal
2/3
.666
What is the sign of
-4(-3/4)
Positive
If you flip three fair coins, what is the probability that you'll get two tails and one head in any order?
1/8
Rewrite the fraction as a decimal:
57/5
11.4
Simplify the following expression:
−8−10×(−7)
62
Francis surveyed a random sample of 70 students at Franklin High School about their favorite season. Of the students surveyed, 18 chose fall as their favorite season. There are 1816 students at Franklin High School.
Based on the data, what is the most reasonable estimate for the number of students at Franklin High School whose favorite season is fall?
467
-45/40+1.875
.750
Simplify the following expression:
4(-2x+3)+6x
-2x+12
Emanuel surveyed a random sample of 50 subscribers to Auto Wheel magazine about the number of cars that they own. Of the subscribers surveyed, 15 own fewer than 22 vehicles. There are 340 subscribers to Auto Wheel magazine.
Based on the data, what is the most reasonable estimate for the number of Auto Wheel magazine subscribers who own fewer than 2 vehicles?
102
What is 1/7 divided by -5/2
-2/35
Simplify the following expression:
(−5)^2−(−2)^4
9