Exponents
Simplify:
(x3)(x5)
x8
Is the following equation showing exponential growth or decay?
A=500(0.83)5
Decay
Is simple interest linear, quadratic, or exponential?
A hockey goalie saves 12 out of 15 shots on goal in a game. What is the experimental probability of saving a goal? Express your answer as a percent rounded to the nearest whole number.
80%
If a teacher wanted to survey the chess club about whether they should enter a tournament, should the teacher take a census or a sample?
Census
Simplify:
a15 / a8
a7
The following equation represents the population of a town n years after 2017.
P=23000(1.05)n
What was the population in 2017?
23000
Is compound interest linear, quadratic, or exponential?
Exponential
What is the theoretical probability of rolling a 9 on a standard six-sided dice? Express your answer as a percent rounded to the nearest whole number.
0%
A restaurant gives out a survey and only gives two options: Very Satisfied and Not at all Satisfied
What type of bias is this?
Measurement Bias
(p-3)-2
p6
The following equation represents the goose population of the local park n months from now.
P=55(1.02)n
What will be the projected population in 3 months?
58 geese
Calculate the interest on a $3000 loan that has an interest rate of 9.5% for 3 years simple interest.
$855
What is the theoretical probability of rolling either a 2, a 3, or a 4 on a standard six-sided dice. Express your answer as a fraction in lowest terms.
1/2
A survey is done to find out whether the town should fund a new indoor soccer arena. The researcher only surveys parents at a local kids' soccer practice. What type of bias is this?
Sampling Bias
Simplify:
(x7y-2z-8)0
1
A car worth $26000 depreciates by 20% per year. What will the car be worth in 5 years?
$8519.68
Calculate the final amount of an $8000 investment with an interest rate of 4.5% compounded monthly for 8 years.
$11376.80
If the theoretical probability of a buyer choosing Nike shoes is 35%, how many buyers from a group of 250 would be expected to buy Nike shoes?
87 or 88
What are the three measures of central tendency?
Mean, Median, Mode
(2-2)(22)
1/16
A painting is appreciating by 8% per year. If the painting is currently worth $5000, how much will it be worth in 7 years?
$8569.12
Calculate the interest earned on a $4500 investment with an interest rate of 3% compounded quarterly for 4 years.
$564.79
A coin is flipped 3 times. What is the probability of getting two tails in any order? Express your answer as a decimal rounded to two decimal places. HINT: Draw a tree diagram to help!
0.38
If you have the variance, how can you find the standard deviation?
Square root of the variance